Q: What are the prime factors of the number 25,745,878?

 A: 2, 23, 71, 7883

Why are those the prime factors of the number 25,745,878?

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 25,745,878

25,745,878
Factor Arrows
212,872,939
Factor Arrows
23559,693
Factor Arrows
717,883

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, 71, 7883

We can check our work by multiplying all of the prime factors together: 2 x 23 x 71 x 7,883 = 25,745,878

This can also be written as 21 x 231 x 711 x 7,8831 = 25,745,878

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


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