Q: What are the prime factors of the number 126,354,254?

 A: 2, 13, 199, 24421

Why are those the prime factors of the number 126,354,254?

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 126,354,254

126,354,254
Factor Arrows
263,177,127
Factor Arrows
134,859,779
Factor Arrows
19924,421

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, 13, 199, 24421

We can check our work by multiplying all of the prime factors together: 2 x 13 x 199 x 24,421 = 126,354,254

This can also be written as 21 x 131 x 1991 x 24,4211 = 126,354,254

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


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