Q: What are the prime factors of the number 124,362,638?

 A: 2, 19, 31, 193, 547

Why are those the prime factors of the number 124,362,638?

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 124,362,638

124,362,638
Factor Arrows
262,181,319
Factor Arrows
193,272,701
Factor Arrows
31105,571
Factor Arrows
193547

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, 31, 193, 547

We can check our work by multiplying all of the prime factors together: 2 x 19 x 31 x 193 x 547 = 124,362,638

This can also be written as 21 x 191 x 311 x 1931 x 5471 = 124,362,638

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


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