Q: What are the prime factors of the number 126,283,326?

 A: 2, 3, 13, 107, 15131

Why are those the prime factors of the number 126,283,326?

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 126,283,326

126,283,326
Factor Arrows
263,141,663
Factor Arrows
321,047,221
Factor Arrows
131,619,017
Factor Arrows
10715,131

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, 13, 107, 15131

We can check our work by multiplying all of the prime factors together: 2 x 3 x 13 x 107 x 15,131 = 126,283,326

This can also be written as 21 x 31 x 131 x 1071 x 15,1311 = 126,283,326

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


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