Q: What are the prime factors of the number 26,747,520?

 A: 2, 3, 5, 13931

Why are those the prime factors of the number 26,747,520?

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 26,747,520

26,747,520
Factor Arrows
213,373,760
Factor Arrows
26,686,880
Factor Arrows
23,343,440
Factor Arrows
21,671,720
Factor Arrows
2835,860
Factor Arrows
2417,930
Factor Arrows
2208,965
Factor Arrows
369,655
Factor Arrows
513,931

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, 5, 13931

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 3 x 5 x 13,931 = 26,747,520

This can also be written as 27 x 31 x 51 x 13,9311 = 26,747,520

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


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