Q: What are the prime factors of the number 10,145,331?

 A: 3, 7, 29, 617

Why are those the prime factors of the number 10,145,331?

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 10,145,331

10,145,331
Factor Arrows
33,381,777
Factor Arrows
31,127,259
Factor Arrows
3375,753
Factor Arrows
3125,251
Factor Arrows
717,893
Factor Arrows
29617

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:

3, 7, 29, 617

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 29 x 617 = 10,145,331

This can also be written as 34 x 71 x 291 x 6171 = 10,145,331

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


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