Q: What are the prime factors of the number 752,400?

 A: 2, 3, 5, 11, 19

Why are those the prime factors of the number 752,400?

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 752,400

752,400
Factor Arrows
2376,200
Factor Arrows
2188,100
Factor Arrows
294,050
Factor Arrows
247,025
Factor Arrows
315,675
Factor Arrows
35,225
Factor Arrows
51,045
Factor Arrows
5209
Factor Arrows
1119

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, 11, 19

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 x 11 x 19 = 752,400

This can also be written as 24 x 32 x 52 x 111 x 191 = 752,400

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


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