Q: What are the prime factors of the number 61,662,330?

 A: 2, 3, 5, 137, 1667

Why are those the prime factors of the number 61,662,330?

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 61,662,330

61,662,330
Factor Arrows
230,831,165
Factor Arrows
310,277,055
Factor Arrows
33,425,685
Factor Arrows
31,141,895
Factor Arrows
5228,379
Factor Arrows
1371,667

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, 137, 1667

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 137 x 1,667 = 61,662,330

This can also be written as 21 x 33 x 51 x 1371 x 1,6671 = 61,662,330

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


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