Q: What are the prime factors of the number 100,213,113?

 A: 3, 7, 11, 13, 17, 151

Why are those the prime factors of the number 100,213,113?

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 100,213,113

100,213,113
Factor Arrows
333,404,371
Factor Arrows
74,772,053
Factor Arrows
11433,823
Factor Arrows
1333,371
Factor Arrows
132,567
Factor Arrows
17151

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:

3, 7, 11, 13, 17, 151

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 13 x 13 x 17 x 151 = 100,213,113

This can also be written as 31 x 71 x 111 x 132 x 171 x 1511 = 100,213,113

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


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