Q: What are the prime factors of the number 2,125,112?

 A: 2, 11, 19, 31, 41

Why are those the prime factors of the number 2,125,112?

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 2,125,112

2,125,112
Factor Arrows
21,062,556
Factor Arrows
2531,278
Factor Arrows
2265,639
Factor Arrows
1124,149
Factor Arrows
191,271
Factor Arrows
3141

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, 19, 31, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 19 x 31 x 41 = 2,125,112

This can also be written as 23 x 111 x 191 x 311 x 411 = 2,125,112

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


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