Q: What are the prime factors of the number 717,654,388?

 A: 2, 11, 17, 87221

Why are those the prime factors of the number 717,654,388?

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 717,654,388

717,654,388
Factor Arrows
2358,827,194
Factor Arrows
2179,413,597
Factor Arrows
1116,310,327
Factor Arrows
111,482,757
Factor Arrows
1787,221

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, 11, 17, 87221

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 11 x 17 x 87,221 = 717,654,388

This can also be written as 22 x 112 x 171 x 87,2211 = 717,654,388

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


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