Q: What are the prime factors of the number 124,251,222?

 A: 2, 3, 19, 199, 5477

Why are those the prime factors of the number 124,251,222?

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 124,251,222

124,251,222
Factor Arrows
262,125,611
Factor Arrows
320,708,537
Factor Arrows
191,089,923
Factor Arrows
1995,477

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, 19, 199, 5477

We can check our work by multiplying all of the prime factors together: 2 x 3 x 19 x 199 x 5,477 = 124,251,222

This can also be written as 21 x 31 x 191 x 1991 x 5,4771 = 124,251,222

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


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