Q: What are the prime factors of the number 2,299,616?

 A: 2, 11, 47, 139

Why are those the prime factors of the number 2,299,616?

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 2,299,616

2,299,616
Factor Arrows
21,149,808
Factor Arrows
2574,904
Factor Arrows
2287,452
Factor Arrows
2143,726
Factor Arrows
271,863
Factor Arrows
116,533
Factor Arrows
47139

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, 11, 47, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 47 x 139 = 2,299,616

This can also be written as 25 x 111 x 471 x 1391 = 2,299,616

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


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