Q: What are the prime factors of the number 76,577,445?

 A: 3, 5, 7, 34729

Why are those the prime factors of the number 76,577,445?

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 76,577,445

76,577,445
Factor Arrows
325,525,815
Factor Arrows
38,508,605
Factor Arrows
51,701,721
Factor Arrows
7243,103
Factor Arrows
734,729

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:

3, 5, 7, 34729

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 7 x 34,729 = 76,577,445

This can also be written as 32 x 51 x 72 x 34,7291 = 76,577,445

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


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