Q: What are the prime factors of the number 2,396,800?

 A: 2, 5, 7, 107

Why are those the prime factors of the number 2,396,800?

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 2,396,800

2,396,800
Factor Arrows
21,198,400
Factor Arrows
2599,200
Factor Arrows
2299,600
Factor Arrows
2149,800
Factor Arrows
274,900
Factor Arrows
237,450
Factor Arrows
218,725
Factor Arrows
53,745
Factor Arrows
5749
Factor Arrows
7107

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, 7, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 7 x 107 = 2,396,800

This can also be written as 27 x 52 x 71 x 1071 = 2,396,800

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


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