Q: What are the prime factors of the number 12,562,048?

 A: 2, 17, 23, 251

Why are those the prime factors of the number 12,562,048?

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 12,562,048

12,562,048
Factor Arrows
26,281,024
Factor Arrows
23,140,512
Factor Arrows
21,570,256
Factor Arrows
2785,128
Factor Arrows
2392,564
Factor Arrows
2196,282
Factor Arrows
298,141
Factor Arrows
175,773
Factor Arrows
23251

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, 17, 23, 251

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 17 x 23 x 251 = 12,562,048

This can also be written as 27 x 171 x 231 x 2511 = 12,562,048

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


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