Q: What are the prime factors of the number 124,304,210?

 A: 2, 5, 41, 137, 2213

Why are those the prime factors of the number 124,304,210?

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 124,304,210

124,304,210
Factor Arrows
262,152,105
Factor Arrows
512,430,421
Factor Arrows
41303,181
Factor Arrows
1372,213

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, 41, 137, 2213

We can check our work by multiplying all of the prime factors together: 2 x 5 x 41 x 137 x 2,213 = 124,304,210

This can also be written as 21 x 51 x 411 x 1371 x 2,2131 = 124,304,210

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


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