Q: What are the prime factors of the number 65,791,915?

 A: 5, 7, 89, 21121

Why are those the prime factors of the number 65,791,915?

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 65,791,915

65,791,915
Factor Arrows
513,158,383
Factor Arrows
71,879,769
Factor Arrows
8921,121

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:

5, 7, 89, 21121

We can check our work by multiplying all of the prime factors together: 5 x 7 x 89 x 21,121 = 65,791,915

This can also be written as 51 x 71 x 891 x 21,1211 = 65,791,915

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


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