Q: What are the prime factors of the number 25,007,775?

 A: 3, 5, 13, 1973

Why are those the prime factors of the number 25,007,775?

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 25,007,775

25,007,775
Factor Arrows
38,335,925
Factor Arrows
51,667,185
Factor Arrows
5333,437
Factor Arrows
1325,649
Factor Arrows
131,973

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:

3, 5, 13, 1973

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 13 x 13 x 1,973 = 25,007,775

This can also be written as 31 x 52 x 132 x 1,9731 = 25,007,775

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


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