Q: What are the prime factors of the number 124,142,112?

 A: 2, 3, 53, 2711

Why are those the prime factors of the number 124,142,112?

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 124,142,112

124,142,112
Factor Arrows
262,071,056
Factor Arrows
231,035,528
Factor Arrows
215,517,764
Factor Arrows
27,758,882
Factor Arrows
23,879,441
Factor Arrows
31,293,147
Factor Arrows
3431,049
Factor Arrows
3143,683
Factor Arrows
532,711

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, 3, 53, 2711

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 53 x 2,711 = 124,142,112

This can also be written as 25 x 33 x 531 x 2,7111 = 124,142,112

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


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