Q: What are the prime factors of the number 103,600?

 A: 2, 5, 7, 37

Why are those the prime factors of the number 103,600?

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 103,600

103,600
Factor Arrows
251,800
Factor Arrows
225,900
Factor Arrows
212,950
Factor Arrows
26,475
Factor Arrows
51,295
Factor Arrows
5259
Factor Arrows
737

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, 7, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 7 x 37 = 103,600

This can also be written as 24 x 52 x 71 x 371 = 103,600

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


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