Q: What are the prime factors of the number 20,468,175?

 A: 3, 5, 7, 13, 2999

Why are those the prime factors of the number 20,468,175?

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 20,468,175

20,468,175
Factor Arrows
36,822,725
Factor Arrows
51,364,545
Factor Arrows
5272,909
Factor Arrows
738,987
Factor Arrows
132,999

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:

3, 5, 7, 13, 2999

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 7 x 13 x 2,999 = 20,468,175

This can also be written as 31 x 52 x 71 x 131 x 2,9991 = 20,468,175

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


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