Q: What are the prime factors of the number 25,040,140?

 A: 2, 5, 107, 11701

Why are those the prime factors of the number 25,040,140?

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 25,040,140

25,040,140
Factor Arrows
212,520,070
Factor Arrows
26,260,035
Factor Arrows
51,252,007
Factor Arrows
10711,701

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, 5, 107, 11701

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 107 x 11,701 = 25,040,140

This can also be written as 22 x 51 x 1071 x 11,7011 = 25,040,140

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


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