Q: What are the prime factors of the number 22,301,160?

 A: 2, 3, 5, 7, 139, 191

Why are those the prime factors of the number 22,301,160?

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 22,301,160

22,301,160
Factor Arrows
211,150,580
Factor Arrows
25,575,290
Factor Arrows
22,787,645
Factor Arrows
3929,215
Factor Arrows
5185,843
Factor Arrows
726,549
Factor Arrows
139191

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, 7, 139, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 7 x 139 x 191 = 22,301,160

This can also be written as 23 x 31 x 51 x 71 x 1391 x 1911 = 22,301,160

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


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