Q: What are the prime factors of the number 72,506,735?

 A: 5, 7, 61, 33961

Why are those the prime factors of the number 72,506,735?

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 72,506,735

72,506,735
Factor Arrows
514,501,347
Factor Arrows
72,071,621
Factor Arrows
6133,961

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, 61, 33961

We can check our work by multiplying all of the prime factors together: 5 x 7 x 61 x 33,961 = 72,506,735

This can also be written as 51 x 71 x 611 x 33,9611 = 72,506,735

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


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