Q: What are the prime factors of the number 32,295,312?

 A: 2, 3, 7, 23, 199

Why are those the prime factors of the number 32,295,312?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 32,295,312

32,295,312
Factor Arrows
216,147,656
Factor Arrows
28,073,828
Factor Arrows
24,036,914
Factor Arrows
22,018,457
Factor Arrows
3672,819
Factor Arrows
3224,273
Factor Arrows
732,039
Factor Arrows
74,577
Factor Arrows
23199

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 23, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 7 x 23 x 199 = 32,295,312

This can also be written as 24 x 32 x 72 x 231 x 1991 = 32,295,312

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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