Q: What are the prime factors of the number 12,496,960?

 A: 2, 5, 7, 797

Why are those the prime factors of the number 12,496,960?

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 12,496,960

12,496,960
Factor Arrows
26,248,480
Factor Arrows
23,124,240
Factor Arrows
21,562,120
Factor Arrows
2781,060
Factor Arrows
2390,530
Factor Arrows
2195,265
Factor Arrows
539,053
Factor Arrows
75,579
Factor Arrows
7797

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:

2, 5, 7, 797

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 7 x 7 x 797 = 12,496,960

This can also be written as 26 x 51 x 72 x 7971 = 12,496,960

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


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