Q: What are the prime factors of the number 11,117,955?

 A: 3, 5, 157, 4721

Why are those the prime factors of the number 11,117,955?

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 11,117,955

11,117,955
Factor Arrows
33,705,985
Factor Arrows
5741,197
Factor Arrows
1574,721

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, 157, 4721

We can check our work by multiplying all of the prime factors together: 3 x 5 x 157 x 4,721 = 11,117,955

This can also be written as 31 x 51 x 1571 x 4,7211 = 11,117,955

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


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