Q: What are the prime factors of the number 124,210,144?

 A: 2, 19, 43, 4751

Why are those the prime factors of the number 124,210,144?

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 124,210,144

124,210,144
Factor Arrows
262,105,072
Factor Arrows
231,052,536
Factor Arrows
215,526,268
Factor Arrows
27,763,134
Factor Arrows
23,881,567
Factor Arrows
19204,293
Factor Arrows
434,751

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, 19, 43, 4751

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 43 x 4,751 = 124,210,144

This can also be written as 25 x 191 x 431 x 4,7511 = 124,210,144

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


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