Q: What are the prime factors of the number 657,065,340?

 A: 2, 3, 5, 719, 5077

Why are those the prime factors of the number 657,065,340?

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 657,065,340

657,065,340
Factor Arrows
2328,532,670
Factor Arrows
2164,266,335
Factor Arrows
354,755,445
Factor Arrows
318,251,815
Factor Arrows
53,650,363
Factor Arrows
7195,077

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, 5, 719, 5077

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 719 x 5,077 = 657,065,340

This can also be written as 22 x 32 x 51 x 7191 x 5,0771 = 657,065,340

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


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