Q: What are the prime factors of the number 274,176?

 A: 2, 3, 7, 17

Why are those the prime factors of the number 274,176?

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 274,176

274,176
Factor Arrows
2137,088
Factor Arrows
268,544
Factor Arrows
234,272
Factor Arrows
217,136
Factor Arrows
28,568
Factor Arrows
24,284
Factor Arrows
22,142
Factor Arrows
21,071
Factor Arrows
3357
Factor Arrows
3119
Factor Arrows
717

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, 17

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 3 x 3 x 7 x 17 = 274,176

This can also be written as 28 x 32 x 71 x 171 = 274,176

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


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