Q: What are the prime factors of the number 286,944?

 A: 2, 3, 7, 61

Why are those the prime factors of the number 286,944?

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 286,944

286,944
Factor Arrows
2143,472
Factor Arrows
271,736
Factor Arrows
235,868
Factor Arrows
217,934
Factor Arrows
28,967
Factor Arrows
32,989
Factor Arrows
7427
Factor Arrows
761

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, 61

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 7 x 7 x 61 = 286,944

This can also be written as 25 x 31 x 72 x 611 = 286,944

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


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