Q: What are the prime factors of the number 13,047,102?

 A: 2, 3, 41, 71, 83

Why are those the prime factors of the number 13,047,102?

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 13,047,102

13,047,102
Factor Arrows
26,523,551
Factor Arrows
32,174,517
Factor Arrows
3724,839
Factor Arrows
3241,613
Factor Arrows
415,893
Factor Arrows
7183

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, 41, 71, 83

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 41 x 71 x 83 = 13,047,102

This can also be written as 21 x 33 x 411 x 711 x 831 = 13,047,102

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


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