Q: What are the prime factors of the number 61,471,530?

 A: 2, 3, 5, 61, 11197

Why are those the prime factors of the number 61,471,530?

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 61,471,530

61,471,530
Factor Arrows
230,735,765
Factor Arrows
310,245,255
Factor Arrows
33,415,085
Factor Arrows
5683,017
Factor Arrows
6111,197

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, 61, 11197

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 61 x 11,197 = 61,471,530

This can also be written as 21 x 32 x 51 x 611 x 11,1971 = 61,471,530

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


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