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jakyfraze
 one year ago
someone please help me :"(
What is the prime factorization of 1,260?
A. 2 × 3 × 5 × 6 × 7
B. 4 × 5 × 7 × 9
C. 2 × 2 × 3 × 3 × 5 × 7
D. 2 × 3 × 5 × 7
jakyfraze
 one year ago
someone please help me :"( What is the prime factorization of 1,260? A. 2 × 3 × 5 × 6 × 7 B. 4 × 5 × 7 × 9 C. 2 × 2 × 3 × 3 × 5 × 7 D. 2 × 3 × 5 × 7

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442797970378:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1to find the prime factorization, we divide by small numbers. let's pick a small number like 2 what is 1260/2 equal to?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes, so because 1260 = 2*630, we draw two branches like this dw:1442798244739:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1then we do the same with 630 630/2 equals ???

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442798355918:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1then we do 315/2 = 157.5 which is not a whole number so we try another small number like 3 315/3 = ???

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442798443090:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1we keep going down the line until everything is broken up into prime numbers

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what would the complete factor tree look like?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yeah if we keep going, we'd have 105/3 = 35 35/5 = 7 dw:1442798627134:dw as you can see, the tree gets big pretty fast. Luckily we're done at this point because we have nothing but primes left.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1circle the primes then multiply them all out dw:1442798698121:dw

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1so why did you stop going down on the left?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1because we can't break up 2 or 3 into smaller pieces. The primes are the "atomic" elements so to speak. I guess we could say 2 breaks down into 2*1, but then we'd be stuck doing that forever. The tree would never end

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442798869349:dw and so on...

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so that's why 1 is left out of the factor tree

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.11 is NOT a prime number

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1ohh so your saying that if the left side had a 3 it would go down anther step instead of 1 step like the 2?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yeah 3 is also prime so we can't break that down any further. If we include 1 as a factor, then we'd be at it forever

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1hmm. were can i go to learn about this a little more

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1i really want to learn this more because i new to this

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1this page has good tutorial and example http://study.com/academy/lesson/whatisafactortreedefinitionexample.html

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1That's good you want to learn more about it. Let me know if the page helps or not. If not, then I'll find another page

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1and if you want, we can do another example

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1I'm going to checkout the website to

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok pick any number you like that's relatively small, but big enough to factor

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1composite number prime factors, what are the difference?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1a composite number is a number that can be factored into smaller primes eg: 10 is composite because 10 = 2*5 2 and 5 are prime numbers. They cannot be factored into anything but 1 and themself 2 = 2*1 and that's it 5 = 5*1 and that's it

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so think of "composite" as "composed of other smaller things" like composite wood

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442799855476:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442799888145:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1here is a cool interactive lesson to play with http://www.mathplayground.com/factortrees.html click on the "find the prime factorization of 1 number", then you'll be led to an interactive prompt where you type in the numbers to factor various numbers

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1oh my god THANK YOU. so how is the circle numbers prime?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1well we cannot factor a number like 2 any further. When I say "factor" I mean "find two whole numbers that multiply to this number" we can say 2 = 2*1, but 1 isn't prime, so we can't break down 2 further. Any primes that you find on the factor tree are circled so you remember to go back and use them in the final multiplication (like you see below) dw:1442800545730:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.13, 5 and 7 are prime for the same reasons as 2 is for 3, the only two numbers that multiply to 3 are 3 and 1. There are no other factors. So 3 is prime. Same for 5 and 7

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1ohhh thank you, how did you know all of this? thank you @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Lots and lots of practice. You'll get better at it by practicing it as much as possible.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1and you're welcome

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1i will. can i ask another question?

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1because i think i got the hang of it :)

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 i will. can i ask another question? i think i got the hang of it :)

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1thank you :). What are the prime factors of 700? A. 350 × 2 B. 2 × 2 × 2 × 5 × 5 × 7 C. (2 × 2 × 5 × 5 × 7) My answer D. 2 × 2 × 25 × 7

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.12 × 2 × 5 × 5 × 7 is correct. Nice job

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1What are the prime factors of 625? A. 1, 5, 5, 5, 5 B. (5, 5, 25) My answer C. 5, 5, 5, 5 D. 25, 25

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1yes!!! I'm going to continue practicing, to be like you :)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.125 is NOT prime. Why? because it can be factored further 25 = 5*5

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1lol sorry i meant lol

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1What are the prime factors of 625? A. 1, 5, 5, 5, 5 B. 5, 5, 25 C. (5, 5, 5, 5) My answer D. 25, 25

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1the last one was an accident hahah sorry

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yep because 625 = 5*5*5*5

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1there are 4 copies of 5 being multiplied, we can use this shortcut \[\Large 625 = 5*5*5*5 = 5^4\]

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1oh my go was just doing something like that

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1What is the value of 7 to the fifth power? A. 2,401 B. (16,807) My answer C. 35 D. 78,125

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1What is the value of 5.7 × 108? A. 57,000,000 B. (570,000,000) My answer C. 5,700,000,000 D. 5.70000000

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yep 7^5 = 16807

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1and yes, 5.7 * 10^8 = 570,000,000 570,000,000 = 570 million

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1oh my god I'm so happy right now :D. Thank you for everything you where a really big help for me,

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1im loving math right now lol

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I'm glad you're loving math now

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1yeah! so the last question was right too?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1the 570,000,000 one? yes it was

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1oh man thank you :'). I'm about to submit my exam :D

jakyfraze
 one year ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 i got a 100!! thank you thank thank you. and god bless you :)
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