Q: What are the prime factors of the number 101,248?

 A: 2, 7, 113

Why are those the prime factors of the number 101,248?

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 101,248

101,248
Factor Arrows
250,624
Factor Arrows
225,312
Factor Arrows
212,656
Factor Arrows
26,328
Factor Arrows
23,164
Factor Arrows
21,582
Factor Arrows
2791
Factor Arrows
7113

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, 7, 113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 113 = 101,248

This can also be written as 27 x 71 x 1131 = 101,248

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


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