Q: What are the prime factors of the number 53,388,665?

 A: 5, 11, 31, 173, 181

Why are those the prime factors of the number 53,388,665?

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 53,388,665

53,388,665
Factor Arrows
510,677,733
Factor Arrows
11970,703
Factor Arrows
3131,313
Factor Arrows
173181

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:

5, 11, 31, 173, 181

We can check our work by multiplying all of the prime factors together: 5 x 11 x 31 x 173 x 181 = 53,388,665

This can also be written as 51 x 111 x 311 x 1731 x 1811 = 53,388,665

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


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