Q: What are the prime factors of the number 12,456,448?

 A: 2, 24329

Why are those the prime factors of the number 12,456,448?

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 12,456,448

12,456,448
Factor Arrows
26,228,224
Factor Arrows
23,114,112
Factor Arrows
21,557,056
Factor Arrows
2778,528
Factor Arrows
2389,264
Factor Arrows
2194,632
Factor Arrows
297,316
Factor Arrows
248,658
Factor Arrows
224,329

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, 24329

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 24,329 = 12,456,448

This can also be written as 29 x 24,3291 = 12,456,448

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


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