Q: What are the prime factors of the number 123,504,144?

 A: 2, 3, 2573003

Why are those the prime factors of the number 123,504,144?

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 123,504,144

123,504,144
Factor Arrows
261,752,072
Factor Arrows
230,876,036
Factor Arrows
215,438,018
Factor Arrows
27,719,009
Factor Arrows
32,573,003

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, 2573003

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 2,573,003 = 123,504,144

This can also be written as 24 x 31 x 2,573,0031 = 123,504,144

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


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