Q: What are the prime factors of the number 61,471,386?

 A: 2, 3, 229, 1657

Why are those the prime factors of the number 61,471,386?

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 61,471,386

61,471,386
Factor Arrows
230,735,693
Factor Arrows
310,245,231
Factor Arrows
33,415,077
Factor Arrows
31,138,359
Factor Arrows
3379,453
Factor Arrows
2291,657

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, 229, 1657

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 229 x 1,657 = 61,471,386

This can also be written as 21 x 34 x 2291 x 1,6571 = 61,471,386

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


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