Q: What are the prime factors of the number 20,246,517?

 A: 3, 27773

Why are those the prime factors of the number 20,246,517?

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 20,246,517

20,246,517
Factor Arrows
36,748,839
Factor Arrows
32,249,613
Factor Arrows
3749,871
Factor Arrows
3249,957
Factor Arrows
383,319
Factor Arrows
327,773

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:

3, 27773

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 27,773 = 20,246,517

This can also be written as 36 x 27,7731 = 20,246,517

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


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