Q: What are the prime factors of the number 757,800?

 A: 2, 3, 5, 421

Why are those the prime factors of the number 757,800?

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 757,800

757,800
Factor Arrows
2378,900
Factor Arrows
2189,450
Factor Arrows
294,725
Factor Arrows
331,575
Factor Arrows
310,525
Factor Arrows
52,105
Factor Arrows
5421

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, 421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 421 = 757,800

This can also be written as 23 x 32 x 52 x 4211 = 757,800

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


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