Q: What are the prime factors of the number 15,079,365?

 A: 3, 5, 7, 197

Why are those the prime factors of the number 15,079,365?

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 15,079,365

15,079,365
Factor Arrows
35,026,455
Factor Arrows
31,675,485
Factor Arrows
3558,495
Factor Arrows
3186,165
Factor Arrows
362,055
Factor Arrows
320,685
Factor Arrows
36,895
Factor Arrows
51,379
Factor Arrows
7197

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, 5, 7, 197

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 7 x 197 = 15,079,365

This can also be written as 37 x 51 x 71 x 1971 = 15,079,365

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


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