Q: What are the prime factors of the number 25,370,647?

 A: 17, 47, 113, 281

Why are those the prime factors of the number 25,370,647?

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 25,370,647

25,370,647
Factor Arrows
171,492,391
Factor Arrows
4731,753
Factor Arrows
113281

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:

17, 47, 113, 281

We can check our work by multiplying all of the prime factors together: 17 x 47 x 113 x 281 = 25,370,647

This can also be written as 171 x 471 x 1131 x 2811 = 25,370,647

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


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