Q: What are the prime factors of the number 100,113,153?

 A: 3, 7, 17, 193, 1453

Why are those the prime factors of the number 100,113,153?

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 100,113,153

100,113,153
Factor Arrows
333,371,051
Factor Arrows
74,767,293
Factor Arrows
17280,429
Factor Arrows
1931,453

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, 17, 193, 1453

We can check our work by multiplying all of the prime factors together: 3 x 7 x 17 x 193 x 1,453 = 100,113,153

This can also be written as 31 x 71 x 171 x 1931 x 1,4531 = 100,113,153

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


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