Q: What are the prime factors of the number 78,846?

 A: 2, 3, 17, 773

Why are those the prime factors of the number 78,846?

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 78,846

78,846
Factor Arrows
239,423
Factor Arrows
313,141
Factor Arrows
17773

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, 17, 773

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 773 = 78,846

This can also be written as 21 x 31 x 171 x 7731 = 78,846

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


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