Q: What are the prime factors of the number 26,389,160?

 A: 2, 5, 7, 79, 1193

Why are those the prime factors of the number 26,389,160?

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 26,389,160

26,389,160
Factor Arrows
213,194,580
Factor Arrows
26,597,290
Factor Arrows
23,298,645
Factor Arrows
5659,729
Factor Arrows
794,247
Factor Arrows
791,193

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, 7, 79, 1193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 79 x 1,193 = 26,389,160

This can also be written as 23 x 51 x 71 x 791 x 1,1931 = 26,389,160

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


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