Q: What are the prime factors of the number 2,238,192?

 A: 2, 3, 11, 157

Why are those the prime factors of the number 2,238,192?

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 2,238,192

2,238,192
Factor Arrows
21,119,096
Factor Arrows
2559,548
Factor Arrows
2279,774
Factor Arrows
2139,887
Factor Arrows
346,629
Factor Arrows
315,543
Factor Arrows
35,181
Factor Arrows
31,727
Factor Arrows
11157

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, 3, 11, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 11 x 157 = 2,238,192

This can also be written as 24 x 34 x 111 x 1571 = 2,238,192

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


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