Q: What are the prime factors of the number 13,445,056?

 A: 2, 421, 499

Why are those the prime factors of the number 13,445,056?

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 13,445,056

13,445,056
Factor Arrows
26,722,528
Factor Arrows
23,361,264
Factor Arrows
21,680,632
Factor Arrows
2840,316
Factor Arrows
2420,158
Factor Arrows
2210,079
Factor Arrows
421499

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, 421, 499

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 421 x 499 = 13,445,056

This can also be written as 26 x 4211 x 4991 = 13,445,056

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


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