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anonymous
 4 years ago
Give the prime factorization of each number, using exponents where appropriate.
140
144
147
anonymous
 4 years ago
Give the prime factorization of each number, using exponents where appropriate. 140 144 147

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jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0What is 140 divided by 2?

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0What is 70 divided by 2

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0Then we can divide 35 by 5 to get 7 So doing all this gives us this factor tree dw:1357595996931:dw

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0Notice how each branch multiplies to a number above it (eg: 2 and 35 below multiply to 70 above the two)

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0From here, circle all the prime numbers dw:1357596297032:dw

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0Then 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, \[\Large 140 = 2^2*5*7\]

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.0so do you know how to do the others given this one?
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