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Give the prime factorization of each number, using exponents where appropriate.
140
144
147
 one year ago
 one year ago
Give the prime factorization of each number, using exponents where appropriate. 140 144 147
 one year ago
 one year ago

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jim_thompson5910Best ResponseYou've already chosen the best response.0
What is 140 divided by 2?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
What is 70 divided by 2
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
Then we can divide 35 by 5 to get 7 So doing all this gives us this factor tree dw:1357595996931:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
Notice how each branch multiplies to a number above it (eg: 2 and 35 below multiply to 70 above the two)
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
From here, circle all the prime numbers dw:1357596297032:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
Then multiply them out to get 2*2*5*7 Because the twos occur twice, we can rewrite it to get \[\Large 2^2*5*7\] So in the end, \[\Large 140 = 2^2*5*7\]
 one year ago

HorseCrazyGirlForeverBest ResponseYou've already chosen the best response.0
Cool! Thank you! :)
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
so do you know how to do the others given this one?
 one year ago
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