Q: What are the prime factors of the number 18,693,965?

 A: 5, 17, 761

Why are those the prime factors of the number 18,693,965?

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 18,693,965

18,693,965
Factor Arrows
53,738,793
Factor Arrows
17219,929
Factor Arrows
1712,937
Factor Arrows
17761

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:

5, 17, 761

We can check our work by multiplying all of the prime factors together: 5 x 17 x 17 x 17 x 761 = 18,693,965

This can also be written as 51 x 173 x 7611 = 18,693,965

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


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