Q: What are the prime factors of the number 126,287,826?

 A: 2, 3, 7, 881, 3413

Why are those the prime factors of the number 126,287,826?

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 126,287,826

126,287,826
Factor Arrows
263,143,913
Factor Arrows
321,047,971
Factor Arrows
73,006,853
Factor Arrows
8813,413

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, 7, 881, 3413

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 881 x 3,413 = 126,287,826

This can also be written as 21 x 31 x 71 x 8811 x 3,4131 = 126,287,826

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


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