Q: What are the prime factors of the number 947,808?

 A: 2, 3, 1097

Why are those the prime factors of the number 947,808?

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 947,808

947,808
Factor Arrows
2473,904
Factor Arrows
2236,952
Factor Arrows
2118,476
Factor Arrows
259,238
Factor Arrows
229,619
Factor Arrows
39,873
Factor Arrows
33,291
Factor Arrows
31,097

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, 1097

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 1,097 = 947,808

This can also be written as 25 x 33 x 1,0971 = 947,808

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


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