Q: What are the prime factors of the number 92,421?

 A: 3, 7, 163

Why are those the prime factors of the number 92,421?

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 92,421

92,421
Factor Arrows
330,807
Factor Arrows
310,269
Factor Arrows
33,423
Factor Arrows
31,141
Factor Arrows
7163

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:

3, 7, 163

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 163 = 92,421

This can also be written as 34 x 71 x 1631 = 92,421

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


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