Q: What are the prime factors of the number 72,811,837?

 A: 7, 29, 251, 1429

Why are those the prime factors of the number 72,811,837?

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 72,811,837

72,811,837
Factor Arrows
710,401,691
Factor Arrows
29358,679
Factor Arrows
2511,429

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:

7, 29, 251, 1429

We can check our work by multiplying all of the prime factors together: 7 x 29 x 251 x 1,429 = 72,811,837

This can also be written as 71 x 291 x 2511 x 1,4291 = 72,811,837

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


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