Q: What are the prime factors of the number 127,651,645?

 A: 5, 11, 31, 74869

Why are those the prime factors of the number 127,651,645?

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 127,651,645

127,651,645
Factor Arrows
525,530,329
Factor Arrows
112,320,939
Factor Arrows
3174,869

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, 11, 31, 74869

We can check our work by multiplying all of the prime factors together: 5 x 11 x 31 x 74,869 = 127,651,645

This can also be written as 51 x 111 x 311 x 74,8691 = 127,651,645

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


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