Q: What are the prime factors of the number 26,771,520?

 A: 2, 3, 5, 79, 353

Why are those the prime factors of the number 26,771,520?

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 26,771,520

26,771,520
Factor Arrows
213,385,760
Factor Arrows
26,692,880
Factor Arrows
23,346,440
Factor Arrows
21,673,220
Factor Arrows
2836,610
Factor Arrows
2418,305
Factor Arrows
3139,435
Factor Arrows
527,887
Factor Arrows
79353

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, 79, 353

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 3 x 5 x 79 x 353 = 26,771,520

This can also be written as 26 x 31 x 51 x 791 x 3531 = 26,771,520

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


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