Q: What are the prime factors of the number 66,227,245?

 A: 5, 7, 139, 13613

Why are those the prime factors of the number 66,227,245?

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 66,227,245

66,227,245
Factor Arrows
513,245,449
Factor Arrows
71,892,207
Factor Arrows
13913,613

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, 7, 139, 13613

We can check our work by multiplying all of the prime factors together: 5 x 7 x 139 x 13,613 = 66,227,245

This can also be written as 51 x 71 x 1391 x 13,6131 = 66,227,245

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


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