Q: What are the prime factors of the number 141,813?

 A: 3, 7, 2251

Why are those the prime factors of the number 141,813?

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 141,813

141,813
Factor Arrows
347,271
Factor Arrows
315,757
Factor Arrows
72,251

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, 2251

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 2,251 = 141,813

This can also be written as 32 x 71 x 2,2511 = 141,813

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


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