Q: What are the prime factors of the number 125,065,647?

 A: 3, 7, 197, 3359

Why are those the prime factors of the number 125,065,647?

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 125,065,647

125,065,647
Factor Arrows
341,688,549
Factor Arrows
313,896,183
Factor Arrows
34,632,061
Factor Arrows
7661,723
Factor Arrows
1973,359

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, 7, 197, 3359

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 197 x 3,359 = 125,065,647

This can also be written as 33 x 71 x 1971 x 3,3591 = 125,065,647

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


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