Q: What are the prime factors of the number 126,626,450?

 A: 2, 5, 19, 41, 3251

Why are those the prime factors of the number 126,626,450?

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 126,626,450

126,626,450
Factor Arrows
263,313,225
Factor Arrows
512,662,645
Factor Arrows
52,532,529
Factor Arrows
19133,291
Factor Arrows
413,251

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, 5, 19, 41, 3251

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 19 x 41 x 3,251 = 126,626,450

This can also be written as 21 x 52 x 191 x 411 x 3,2511 = 126,626,450

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


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