Q: What are the prime factors of the number 13,287,750?

 A: 2, 3, 5, 7, 2531

Why are those the prime factors of the number 13,287,750?

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 13,287,750

13,287,750
Factor Arrows
26,643,875
Factor Arrows
32,214,625
Factor Arrows
5442,925
Factor Arrows
588,585
Factor Arrows
517,717
Factor Arrows
72,531

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, 3, 5, 7, 2531

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 7 x 2,531 = 13,287,750

This can also be written as 21 x 31 x 53 x 71 x 2,5311 = 13,287,750

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


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