Q: What are the prime factors of the number 18,646,464?

 A: 2, 3, 97117

Why are those the prime factors of the number 18,646,464?

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 18,646,464

18,646,464
Factor Arrows
29,323,232
Factor Arrows
24,661,616
Factor Arrows
22,330,808
Factor Arrows
21,165,404
Factor Arrows
2582,702
Factor Arrows
2291,351
Factor Arrows
397,117

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, 97117

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 3 x 97,117 = 18,646,464

This can also be written as 26 x 31 x 97,1171 = 18,646,464

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


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