Q: What are the prime factors of the number 76,925,160?

 A: 2, 3, 5, 13, 5479

Why are those the prime factors of the number 76,925,160?

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 76,925,160

76,925,160
Factor Arrows
238,462,580
Factor Arrows
219,231,290
Factor Arrows
29,615,645
Factor Arrows
33,205,215
Factor Arrows
31,068,405
Factor Arrows
3356,135
Factor Arrows
571,227
Factor Arrows
135,479

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, 3, 5, 13, 5479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 13 x 5,479 = 76,925,160

This can also be written as 23 x 33 x 51 x 131 x 5,4791 = 76,925,160

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


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