Q: What are the prime factors of the number 123,110,444?

 A: 2, 23, 61, 21937

Why are those the prime factors of the number 123,110,444?

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 123,110,444

123,110,444
Factor Arrows
261,555,222
Factor Arrows
230,777,611
Factor Arrows
231,338,157
Factor Arrows
6121,937

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, 23, 61, 21937

We can check our work by multiplying all of the prime factors together: 2 x 2 x 23 x 61 x 21,937 = 123,110,444

This can also be written as 22 x 231 x 611 x 21,9371 = 123,110,444

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


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