Q: What are the prime factors of the number 106,124,645?

 A: 5, 11, 23, 43, 1951

Why are those the prime factors of the number 106,124,645?

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 106,124,645

106,124,645
Factor Arrows
521,224,929
Factor Arrows
111,929,539
Factor Arrows
2383,893
Factor Arrows
431,951

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:

5, 11, 23, 43, 1951

We can check our work by multiplying all of the prime factors together: 5 x 11 x 23 x 43 x 1,951 = 106,124,645

This can also be written as 51 x 111 x 231 x 431 x 1,9511 = 106,124,645

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


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