Q: What are the prime factors of the number 20,692,518?

 A: 2, 3, 7, 11, 44789

Why are those the prime factors of the number 20,692,518?

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 20,692,518

20,692,518
Factor Arrows
210,346,259
Factor Arrows
33,448,753
Factor Arrows
7492,679
Factor Arrows
1144,789

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, 7, 11, 44789

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 11 x 44,789 = 20,692,518

This can also be written as 21 x 31 x 71 x 111 x 44,7891 = 20,692,518

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


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