Q: What are the prime factors of the number 101,610,640?

 A: 2, 5, 193, 6581

Why are those the prime factors of the number 101,610,640?

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 101,610,640

101,610,640
Factor Arrows
250,805,320
Factor Arrows
225,402,660
Factor Arrows
212,701,330
Factor Arrows
26,350,665
Factor Arrows
51,270,133
Factor Arrows
1936,581

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, 193, 6581

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 193 x 6,581 = 101,610,640

This can also be written as 24 x 51 x 1931 x 6,5811 = 101,610,640

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


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