Q: What are the prime factors of the number 125,304,330?

 A: 2, 3, 5, 139, 151, 199

Why are those the prime factors of the number 125,304,330?

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 125,304,330

125,304,330
Factor Arrows
262,652,165
Factor Arrows
320,884,055
Factor Arrows
54,176,811
Factor Arrows
13930,049
Factor Arrows
151199

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, 139, 151, 199

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 139 x 151 x 199 = 125,304,330

This can also be written as 21 x 31 x 51 x 1391 x 1511 x 1991 = 125,304,330

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


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