Q: What are the prime factors of the number 12,743,168?

 A: 2, 24889

Why are those the prime factors of the number 12,743,168?

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 12,743,168

12,743,168
Factor Arrows
26,371,584
Factor Arrows
23,185,792
Factor Arrows
21,592,896
Factor Arrows
2796,448
Factor Arrows
2398,224
Factor Arrows
2199,112
Factor Arrows
299,556
Factor Arrows
249,778
Factor Arrows
224,889

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, 24889

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 24,889 = 12,743,168

This can also be written as 29 x 24,8891 = 12,743,168

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


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