Q: What are the prime factors of the number 456,448?

 A: 2, 1783

Why are those the prime factors of the number 456,448?

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 456,448

456,448
Factor Arrows
2228,224
Factor Arrows
2114,112
Factor Arrows
257,056
Factor Arrows
228,528
Factor Arrows
214,264
Factor Arrows
27,132
Factor Arrows
23,566
Factor Arrows
21,783

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, 1783

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 1,783 = 456,448

This can also be written as 28 x 1,7831 = 456,448

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


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