Q: What are the prime factors of the number 57,272,020?

 A: 2, 5, 13, 181, 1217

Why are those the prime factors of the number 57,272,020?

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 57,272,020

57,272,020
Factor Arrows
228,636,010
Factor Arrows
214,318,005
Factor Arrows
52,863,601
Factor Arrows
13220,277
Factor Arrows
1811,217

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, 5, 13, 181, 1217

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 181 x 1,217 = 57,272,020

This can also be written as 22 x 51 x 131 x 1811 x 1,2171 = 57,272,020

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


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