Q: What are the prime factors of the number 84,130,125?

 A: 3, 5, 31, 7237

Why are those the prime factors of the number 84,130,125?

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 84,130,125

84,130,125
Factor Arrows
328,043,375
Factor Arrows
55,608,675
Factor Arrows
51,121,735
Factor Arrows
5224,347
Factor Arrows
317,237

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, 31, 7237

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 31 x 7,237 = 84,130,125

This can also be written as 31 x 53 x 311 x 7,2371 = 84,130,125

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


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