Q: What are the prime factors of the number 13,646,100?

 A: 2, 3, 5, 13, 3499

Why are those the prime factors of the number 13,646,100?

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 13,646,100

13,646,100
Factor Arrows
26,823,050
Factor Arrows
23,411,525
Factor Arrows
31,137,175
Factor Arrows
5227,435
Factor Arrows
545,487
Factor Arrows
133,499

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, 13, 3499

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 13 x 3,499 = 13,646,100

This can also be written as 22 x 31 x 52 x 131 x 3,4991 = 13,646,100

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


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