Q: What are the prime factors of the number 25,465,200?

 A: 2, 3, 5, 21221

Why are those the prime factors of the number 25,465,200?

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 25,465,200

25,465,200
Factor Arrows
212,732,600
Factor Arrows
26,366,300
Factor Arrows
23,183,150
Factor Arrows
21,591,575
Factor Arrows
3530,525
Factor Arrows
5106,105
Factor Arrows
521,221

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, 5, 21221

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 5 x 21,221 = 25,465,200

This can also be written as 24 x 31 x 52 x 21,2211 = 25,465,200

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


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