Q: What are the prime factors of the number 101,121,110?

 A: 2, 5, 23, 139, 3163

Why are those the prime factors of the number 101,121,110?

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 101,121,110

101,121,110
Factor Arrows
250,560,555
Factor Arrows
510,112,111
Factor Arrows
23439,657
Factor Arrows
1393,163

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, 23, 139, 3163

We can check our work by multiplying all of the prime factors together: 2 x 5 x 23 x 139 x 3,163 = 101,121,110

This can also be written as 21 x 51 x 231 x 1391 x 3,1631 = 101,121,110

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


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