Q: What are the prime factors of the number 2,538,208?

 A: 2, 79319

Why are those the prime factors of the number 2,538,208?

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 2,538,208

2,538,208
Factor Arrows
21,269,104
Factor Arrows
2634,552
Factor Arrows
2317,276
Factor Arrows
2158,638
Factor Arrows
279,319

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, 79319

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 79,319 = 2,538,208

This can also be written as 25 x 79,3191 = 2,538,208

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


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