Q: What are the prime factors of the number 2,902,216?

 A: 2, 199, 1823

Why are those the prime factors of the number 2,902,216?

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 2,902,216

2,902,216
Factor Arrows
21,451,108
Factor Arrows
2725,554
Factor Arrows
2362,777
Factor Arrows
1991,823

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, 199, 1823

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 199 x 1,823 = 2,902,216

This can also be written as 23 x 1991 x 1,8231 = 2,902,216

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


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