Q: What are the prime factors of the number 578,400?

 A: 2, 3, 5, 241

Why are those the prime factors of the number 578,400?

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 578,400

578,400
Factor Arrows
2289,200
Factor Arrows
2144,600
Factor Arrows
272,300
Factor Arrows
236,150
Factor Arrows
218,075
Factor Arrows
36,025
Factor Arrows
51,205
Factor Arrows
5241

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, 241

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 5 x 5 x 241 = 578,400

This can also be written as 25 x 31 x 52 x 2411 = 578,400

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


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