Q: What are the prime factors of the number 306,176?

 A: 2, 13, 23

Why are those the prime factors of the number 306,176?

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 306,176

306,176
Factor Arrows
2153,088
Factor Arrows
276,544
Factor Arrows
238,272
Factor Arrows
219,136
Factor Arrows
29,568
Factor Arrows
24,784
Factor Arrows
22,392
Factor Arrows
21,196
Factor Arrows
2598
Factor Arrows
2299
Factor Arrows
1323

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, 13, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 23 = 306,176

This can also be written as 210 x 131 x 231 = 306,176

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


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