Q: What are the prime factors of the number 384,846?

 A: 2, 3, 7, 11, 17

Why are those the prime factors of the number 384,846?

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 384,846

384,846
Factor Arrows
2192,423
Factor Arrows
364,141
Factor Arrows
79,163
Factor Arrows
71,309
Factor Arrows
7187
Factor Arrows
1117

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, 7, 11, 17

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 7 x 11 x 17 = 384,846

This can also be written as 21 x 31 x 73 x 111 x 171 = 384,846

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


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