Q: What are the prime factors of the number 25,432,316?

 A: 2, 7, 13, 109, 641

Why are those the prime factors of the number 25,432,316?

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 25,432,316

25,432,316
Factor Arrows
212,716,158
Factor Arrows
26,358,079
Factor Arrows
7908,297
Factor Arrows
1369,869
Factor Arrows
109641

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, 7, 13, 109, 641

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 13 x 109 x 641 = 25,432,316

This can also be written as 22 x 71 x 131 x 1091 x 6411 = 25,432,316

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


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