Q: What are the prime factors of the number 4,124,015?

 A: 5, 7, 23, 47, 109

Why are those the prime factors of the number 4,124,015?

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 4,124,015

4,124,015
Factor Arrows
5824,803
Factor Arrows
7117,829
Factor Arrows
235,123
Factor Arrows
47109

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, 23, 47, 109

We can check our work by multiplying all of the prime factors together: 5 x 7 x 23 x 47 x 109 = 4,124,015

This can also be written as 51 x 71 x 231 x 471 x 1091 = 4,124,015

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


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