Q: What are the prime factors of the number 76,307,210?

 A: 2, 5, 7, 22247

Why are those the prime factors of the number 76,307,210?

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 76,307,210

76,307,210
Factor Arrows
238,153,605
Factor Arrows
57,630,721
Factor Arrows
71,090,103
Factor Arrows
7155,729
Factor Arrows
722,247

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, 7, 22247

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 7 x 7 x 22,247 = 76,307,210

This can also be written as 21 x 51 x 73 x 22,2471 = 76,307,210

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


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