Q: What are the prime factors of the number 25,065,207?

 A: 3, 73, 157

Why are those the prime factors of the number 25,065,207?

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 25,065,207

25,065,207
Factor Arrows
38,355,069
Factor Arrows
32,785,023
Factor Arrows
3928,341
Factor Arrows
3309,447
Factor Arrows
3103,149
Factor Arrows
334,383
Factor Arrows
311,461
Factor Arrows
73157

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:

3, 73, 157

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 3 x 73 x 157 = 25,065,207

This can also be written as 37 x 731 x 1571 = 25,065,207

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


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