Q: What are the prime factors of the number 38,306,653?

 A: 7, 11, 443, 1123

Why are those the prime factors of the number 38,306,653?

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 38,306,653

38,306,653
Factor Arrows
75,472,379
Factor Arrows
11497,489
Factor Arrows
4431,123

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:

7, 11, 443, 1123

We can check our work by multiplying all of the prime factors together: 7 x 11 x 443 x 1,123 = 38,306,653

This can also be written as 71 x 111 x 4431 x 1,1231 = 38,306,653

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


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