Q: What are the prime factors of the number 26,422,240?

 A: 2, 5, 13, 12703

Why are those the prime factors of the number 26,422,240?

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 26,422,240

26,422,240
Factor Arrows
213,211,120
Factor Arrows
26,605,560
Factor Arrows
23,302,780
Factor Arrows
21,651,390
Factor Arrows
2825,695
Factor Arrows
5165,139
Factor Arrows
1312,703

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, 13, 12703

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 13 x 12,703 = 26,422,240

This can also be written as 25 x 51 x 131 x 12,7031 = 26,422,240

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


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