Q: What are the prime factors of the number 753,648?

 A: 2, 3, 7, 2243

Why are those the prime factors of the number 753,648?

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 753,648

753,648
Factor Arrows
2376,824
Factor Arrows
2188,412
Factor Arrows
294,206
Factor Arrows
247,103
Factor Arrows
315,701
Factor Arrows
72,243

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, 7, 2243

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 2,243 = 753,648

This can also be written as 24 x 31 x 71 x 2,2431 = 753,648

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


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