Q: What are the prime factors of the number 881,172?

 A: 2, 3, 41, 199

Why are those the prime factors of the number 881,172?

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 881,172

881,172
Factor Arrows
2440,586
Factor Arrows
2220,293
Factor Arrows
373,431
Factor Arrows
324,477
Factor Arrows
38,159
Factor Arrows
41199

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, 41, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 41 x 199 = 881,172

This can also be written as 22 x 33 x 411 x 1991 = 881,172

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


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