Q: What are the prime factors of the number 51,561,306?

 A: 2, 3, 17, 56167

Why are those the prime factors of the number 51,561,306?

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 51,561,306

51,561,306
Factor Arrows
225,780,653
Factor Arrows
38,593,551
Factor Arrows
32,864,517
Factor Arrows
3954,839
Factor Arrows
1756,167

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, 17, 56167

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 17 x 56,167 = 51,561,306

This can also be written as 21 x 33 x 171 x 56,1671 = 51,561,306

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


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