Q: What are the prime factors of the number 25,361,664?

 A: 2, 3, 33023

Why are those the prime factors of the number 25,361,664?

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 25,361,664

25,361,664
Factor Arrows
212,680,832
Factor Arrows
26,340,416
Factor Arrows
23,170,208
Factor Arrows
21,585,104
Factor Arrows
2792,552
Factor Arrows
2396,276
Factor Arrows
2198,138
Factor Arrows
299,069
Factor Arrows
333,023

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, 33023

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 2 x 2 x 3 x 33,023 = 25,361,664

This can also be written as 28 x 31 x 33,0231 = 25,361,664

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


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