Q: What are the prime factors of the number 456,768?

 A: 2, 3, 13, 61

Why are those the prime factors of the number 456,768?

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 456,768

456,768
Factor Arrows
2228,384
Factor Arrows
2114,192
Factor Arrows
257,096
Factor Arrows
228,548
Factor Arrows
214,274
Factor Arrows
27,137
Factor Arrows
32,379
Factor Arrows
3793
Factor Arrows
1361

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, 13, 61

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 3 x 3 x 13 x 61 = 456,768

This can also be written as 26 x 32 x 131 x 611 = 456,768

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


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