Q: What are the prime factors of the number 69,999,125?

 A: 5, 7, 79999

Why are those the prime factors of the number 69,999,125?

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 69,999,125

69,999,125
Factor Arrows
513,999,825
Factor Arrows
52,799,965
Factor Arrows
5559,993
Factor Arrows
779,999

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, 7, 79999

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 7 x 79,999 = 69,999,125

This can also be written as 53 x 71 x 79,9991 = 69,999,125

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


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