Q: What are the prime factors of the number 125,778,417?

 A: 3, 71, 271, 2179

Why are those the prime factors of the number 125,778,417?

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 125,778,417

125,778,417
Factor Arrows
341,926,139
Factor Arrows
71590,509
Factor Arrows
2712,179

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, 71, 271, 2179

We can check our work by multiplying all of the prime factors together: 3 x 71 x 271 x 2,179 = 125,778,417

This can also be written as 31 x 711 x 2711 x 2,1791 = 125,778,417

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


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