Q: What are the prime factors of the number 131,541,256?

 A: 2, 7, 11, 19, 11239

Why are those the prime factors of the number 131,541,256?

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 131,541,256

131,541,256
Factor Arrows
265,770,628
Factor Arrows
232,885,314
Factor Arrows
216,442,657
Factor Arrows
72,348,951
Factor Arrows
11213,541
Factor Arrows
1911,239

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, 7, 11, 19, 11239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 19 x 11,239 = 131,541,256

This can also be written as 23 x 71 x 111 x 191 x 11,2391 = 131,541,256

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


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