Q: What are the prime factors of the number 126,554,664?

 A: 2, 3, 17, 313, 991

Why are those the prime factors of the number 126,554,664?

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 126,554,664

126,554,664
Factor Arrows
263,277,332
Factor Arrows
231,638,666
Factor Arrows
215,819,333
Factor Arrows
35,273,111
Factor Arrows
17310,183
Factor Arrows
313991

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, 17, 313, 991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17 x 313 x 991 = 126,554,664

This can also be written as 23 x 31 x 171 x 3131 x 9911 = 126,554,664

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


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