Q: What are the prime factors of the number 182,400?

 A: 2, 3, 5, 19

Why are those the prime factors of the number 182,400?

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 182,400

182,400
Factor Arrows
291,200
Factor Arrows
245,600
Factor Arrows
222,800
Factor Arrows
211,400
Factor Arrows
25,700
Factor Arrows
22,850
Factor Arrows
21,425
Factor Arrows
3475
Factor Arrows
595
Factor Arrows
519

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, 5, 19

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 3 x 5 x 5 x 19 = 182,400

This can also be written as 27 x 31 x 52 x 191 = 182,400

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


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