Q: What are the prime factors of the number 717,788,340?

 A: 2, 3, 5, 467, 8539

Why are those the prime factors of the number 717,788,340?

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 717,788,340

717,788,340
Factor Arrows
2358,894,170
Factor Arrows
2179,447,085
Factor Arrows
359,815,695
Factor Arrows
319,938,565
Factor Arrows
53,987,713
Factor Arrows
4678,539

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, 467, 8539

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 467 x 8,539 = 717,788,340

This can also be written as 22 x 32 x 51 x 4671 x 8,5391 = 717,788,340

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


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