Question

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

Answer 1

What is 140 divided by 2?

Answer 2

70?

Answer 3

What is 70 divided by 2

Answer 4

35

Answer 5

Then we can divide 35 by 5 to get 7

So doing all this gives us this factor tree

Answer 6

Notice how each branch multiplies to a number above it (eg: 2 and 35 below multiply to 70 above the two)

Answer 7

From here, circle all the prime numbers

Answer 8

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,

\[\Large 140 = 2^2*5*7\]

Answer 9

Cool! Thank you! :)

Answer 10

yw

Answer 11

:D:D

Answer 12

so do you know how to do the others given this one?