Q: What are the prime factors of the number 64,743,965?

 A: 5, 11, 13, 23, 31, 127

Why are those the prime factors of the number 64,743,965?

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 64,743,965

64,743,965
Factor Arrows
512,948,793
Factor Arrows
111,177,163
Factor Arrows
1390,551
Factor Arrows
233,937
Factor Arrows
31127

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, 13, 23, 31, 127

We can check our work by multiplying all of the prime factors together: 5 x 11 x 13 x 23 x 31 x 127 = 64,743,965

This can also be written as 51 x 111 x 131 x 231 x 311 x 1271 = 64,743,965

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


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