Q: What are the prime factors of the number 25,791,492?

 A: 2, 3, 257, 8363

Why are those the prime factors of the number 25,791,492?

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 25,791,492

25,791,492
Factor Arrows
212,895,746
Factor Arrows
26,447,873
Factor Arrows
32,149,291
Factor Arrows
2578,363

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, 257, 8363

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 257 x 8,363 = 25,791,492

This can also be written as 22 x 31 x 2571 x 8,3631 = 25,791,492

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


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