Q: What are the prime factors of the number 545,320,110?

 A: 2, 3, 5, 23, 103, 7673

Why are those the prime factors of the number 545,320,110?

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 545,320,110

545,320,110
Factor Arrows
2272,660,055
Factor Arrows
390,886,685
Factor Arrows
518,177,337
Factor Arrows
23790,319
Factor Arrows
1037,673

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, 5, 23, 103, 7673

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 23 x 103 x 7,673 = 545,320,110

This can also be written as 21 x 31 x 51 x 231 x 1031 x 7,6731 = 545,320,110

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


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