Q: What are the prime factors of the number 2,444,800?

 A: 2, 5, 191

Why are those the prime factors of the number 2,444,800?

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 2,444,800

2,444,800
Factor Arrows
21,222,400
Factor Arrows
2611,200
Factor Arrows
2305,600
Factor Arrows
2152,800
Factor Arrows
276,400
Factor Arrows
238,200
Factor Arrows
219,100
Factor Arrows
29,550
Factor Arrows
24,775
Factor Arrows
5955
Factor Arrows
5191

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, 191

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 2 x 2 x 5 x 5 x 191 = 2,444,800

This can also be written as 29 x 52 x 1911 = 2,444,800

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


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