Q: What are the prime factors of the number 126,623,007?

 A: 3, 7, 61, 523

Why are those the prime factors of the number 126,623,007?

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 126,623,007

126,623,007
Factor Arrows
342,207,669
Factor Arrows
314,069,223
Factor Arrows
34,689,741
Factor Arrows
31,563,247
Factor Arrows
7223,321
Factor Arrows
731,903
Factor Arrows
61523

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, 7, 61, 523

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 7 x 61 x 523 = 126,623,007

This can also be written as 34 x 72 x 611 x 5231 = 126,623,007

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


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