Q: What are the prime factors of the number 72,493,070?

 A: 2, 5, 13, 557639

Why are those the prime factors of the number 72,493,070?

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 72,493,070

72,493,070
Factor Arrows
236,246,535
Factor Arrows
57,249,307
Factor Arrows
13557,639

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, 5, 13, 557639

We can check our work by multiplying all of the prime factors together: 2 x 5 x 13 x 557,639 = 72,493,070

This can also be written as 21 x 51 x 131 x 557,6391 = 72,493,070

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


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