Q: What are the prime factors of the number 22,586,256?

 A: 2, 3, 7, 11, 97

Why are those the prime factors of the number 22,586,256?

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 22,586,256

22,586,256
Factor Arrows
211,293,128
Factor Arrows
25,646,564
Factor Arrows
22,823,282
Factor Arrows
21,411,641
Factor Arrows
3470,547
Factor Arrows
3156,849
Factor Arrows
352,283
Factor Arrows
77,469
Factor Arrows
71,067
Factor Arrows
1197

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, 7, 11, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 7 x 11 x 97 = 22,586,256

This can also be written as 24 x 33 x 72 x 111 x 971 = 22,586,256

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


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