Q: What are the prime factors of the number 13,273,344?

 A: 2, 3, 7, 823

Why are those the prime factors of the number 13,273,344?

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 13,273,344

13,273,344
Factor Arrows
26,636,672
Factor Arrows
23,318,336
Factor Arrows
21,659,168
Factor Arrows
2829,584
Factor Arrows
2414,792
Factor Arrows
2207,396
Factor Arrows
2103,698
Factor Arrows
251,849
Factor Arrows
317,283
Factor Arrows
35,761
Factor Arrows
7823

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, 7, 823

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 3 x 3 x 7 x 823 = 13,273,344

This can also be written as 28 x 32 x 71 x 8231 = 13,273,344

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


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