Q: What are the prime factors of the number 787,200?

 A: 2, 3, 5, 41

Why are those the prime factors of the number 787,200?

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 787,200

787,200
Factor Arrows
2393,600
Factor Arrows
2196,800
Factor Arrows
298,400
Factor Arrows
249,200
Factor Arrows
224,600
Factor Arrows
212,300
Factor Arrows
26,150
Factor Arrows
23,075
Factor Arrows
31,025
Factor Arrows
5205
Factor Arrows
541

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, 41

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 5 x 5 x 41 = 787,200

This can also be written as 28 x 31 x 52 x 411 = 787,200

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


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