Q: What are the prime factors of the number 126,622,615?

 A: 5, 7, 257, 2011

Why are those the prime factors of the number 126,622,615?

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 126,622,615

126,622,615
Factor Arrows
525,324,523
Factor Arrows
73,617,789
Factor Arrows
7516,827
Factor Arrows
2572,011

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, 7, 257, 2011

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 257 x 2,011 = 126,622,615

This can also be written as 51 x 72 x 2571 x 2,0111 = 126,622,615

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


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