Q: What are the prime factors of the number 26,782,520?

 A: 2, 5, 139, 4817

Why are those the prime factors of the number 26,782,520?

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 26,782,520

26,782,520
Factor Arrows
213,391,260
Factor Arrows
26,695,630
Factor Arrows
23,347,815
Factor Arrows
5669,563
Factor Arrows
1394,817

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, 5, 139, 4817

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 139 x 4,817 = 26,782,520

This can also be written as 23 x 51 x 1391 x 4,8171 = 26,782,520

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


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