Q: What are the prime factors of the number 545,775?

 A: 3, 5, 19, 383

Why are those the prime factors of the number 545,775?

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 545,775

545,775
Factor Arrows
3181,925
Factor Arrows
536,385
Factor Arrows
57,277
Factor Arrows
19383

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:

3, 5, 19, 383

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 19 x 383 = 545,775

This can also be written as 31 x 52 x 191 x 3831 = 545,775

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


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