Q: What are the prime factors of the number 25,415,552?

 A: 2, 23, 89, 97

Why are those the prime factors of the number 25,415,552?

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 25,415,552

25,415,552
Factor Arrows
212,707,776
Factor Arrows
26,353,888
Factor Arrows
23,176,944
Factor Arrows
21,588,472
Factor Arrows
2794,236
Factor Arrows
2397,118
Factor Arrows
2198,559
Factor Arrows
238,633
Factor Arrows
8997

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, 23, 89, 97

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 23 x 89 x 97 = 25,415,552

This can also be written as 27 x 231 x 891 x 971 = 25,415,552

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


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