Q: What are the prime factors of the number 22,147,470?

 A: 2, 3, 5, 73, 3371

Why are those the prime factors of the number 22,147,470?

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 22,147,470

22,147,470
Factor Arrows
211,073,735
Factor Arrows
33,691,245
Factor Arrows
31,230,415
Factor Arrows
5246,083
Factor Arrows
733,371

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, 73, 3371

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 73 x 3,371 = 22,147,470

This can also be written as 21 x 32 x 51 x 731 x 3,3711 = 22,147,470

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


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