Q: What are the prime factors of the number 187,313,574?

 A: 2, 3, 7, 271, 2351

Why are those the prime factors of the number 187,313,574?

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 187,313,574

187,313,574
Factor Arrows
293,656,787
Factor Arrows
331,218,929
Factor Arrows
74,459,847
Factor Arrows
7637,121
Factor Arrows
2712,351

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, 271, 2351

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 271 x 2,351 = 187,313,574

This can also be written as 21 x 31 x 72 x 2711 x 2,3511 = 187,313,574

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


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