Q: What are the prime factors of the number 25,530,219?

 A: 3, 11, 13, 83, 239

Why are those the prime factors of the number 25,530,219?

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 25,530,219

25,530,219
Factor Arrows
38,510,073
Factor Arrows
32,836,691
Factor Arrows
11257,881
Factor Arrows
1319,837
Factor Arrows
83239

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, 11, 13, 83, 239

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 13 x 83 x 239 = 25,530,219

This can also be written as 32 x 111 x 131 x 831 x 2391 = 25,530,219

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


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