Q: What are the prime factors of the number 25,355,264?

 A: 2, 11, 2251

Why are those the prime factors of the number 25,355,264?

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 25,355,264

25,355,264
Factor Arrows
212,677,632
Factor Arrows
26,338,816
Factor Arrows
23,169,408
Factor Arrows
21,584,704
Factor Arrows
2792,352
Factor Arrows
2396,176
Factor Arrows
2198,088
Factor Arrows
299,044
Factor Arrows
249,522
Factor Arrows
224,761
Factor Arrows
112,251

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, 11, 2251

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 2 x 2 x 11 x 2,251 = 25,355,264

This can also be written as 210 x 111 x 2,2511 = 25,355,264

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


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