Q: What are the prime factors of the number 42,530,805?

 A: 3, 5, 311, 1013

Why are those the prime factors of the number 42,530,805?

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 42,530,805

42,530,805
Factor Arrows
314,176,935
Factor Arrows
34,725,645
Factor Arrows
31,575,215
Factor Arrows
5315,043
Factor Arrows
3111,013

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, 311, 1013

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 311 x 1,013 = 42,530,805

This can also be written as 33 x 51 x 3111 x 1,0131 = 42,530,805

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


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