Q: What are the prime factors of the number 445,784?

 A: 2, 103, 541

Why are those the prime factors of the number 445,784?

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 445,784

445,784
Factor Arrows
2222,892
Factor Arrows
2111,446
Factor Arrows
255,723
Factor Arrows
103541

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, 103, 541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 103 x 541 = 445,784

This can also be written as 23 x 1031 x 5411 = 445,784

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


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