Q: What are the prime factors of the number 124,104,100?

 A: 2, 5, 67, 18523

Why are those the prime factors of the number 124,104,100?

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 124,104,100

124,104,100
Factor Arrows
262,052,050
Factor Arrows
231,026,025
Factor Arrows
56,205,205
Factor Arrows
51,241,041
Factor Arrows
6718,523

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, 67, 18523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 67 x 18,523 = 124,104,100

This can also be written as 22 x 52 x 671 x 18,5231 = 124,104,100

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


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