Q: What are the prime factors of the number 26,494,272?

 A: 2, 3, 7, 6571

Why are those the prime factors of the number 26,494,272?

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 26,494,272

26,494,272
Factor Arrows
213,247,136
Factor Arrows
26,623,568
Factor Arrows
23,311,784
Factor Arrows
21,655,892
Factor Arrows
2827,946
Factor Arrows
2413,973
Factor Arrows
3137,991
Factor Arrows
345,997
Factor Arrows
76,571

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, 7, 6571

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 3 x 7 x 6,571 = 26,494,272

This can also be written as 26 x 32 x 71 x 6,5711 = 26,494,272

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


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