Q: What are the prime factors of the number 20,373,735?

 A: 3, 5, 17, 109, 733

Why are those the prime factors of the number 20,373,735?

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 20,373,735

20,373,735
Factor Arrows
36,791,245
Factor Arrows
51,358,249
Factor Arrows
1779,897
Factor Arrows
109733

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, 17, 109, 733

We can check our work by multiplying all of the prime factors together: 3 x 5 x 17 x 109 x 733 = 20,373,735

This can also be written as 31 x 51 x 171 x 1091 x 7331 = 20,373,735

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


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