Q: What are the prime factors of the number 20,277,036?

 A: 2, 3, 13, 37, 1171

Why are those the prime factors of the number 20,277,036?

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 20,277,036

20,277,036
Factor Arrows
210,138,518
Factor Arrows
25,069,259
Factor Arrows
31,689,753
Factor Arrows
3563,251
Factor Arrows
1343,327
Factor Arrows
371,171

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, 13, 37, 1171

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 37 x 1,171 = 20,277,036

This can also be written as 22 x 32 x 131 x 371 x 1,1711 = 20,277,036

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


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