Q: What are the prime factors of the number 55,731,132?

 A: 2, 3, 331, 1559

Why are those the prime factors of the number 55,731,132?

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 55,731,132

55,731,132
Factor Arrows
227,865,566
Factor Arrows
213,932,783
Factor Arrows
34,644,261
Factor Arrows
31,548,087
Factor Arrows
3516,029
Factor Arrows
3311,559

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, 331, 1559

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 331 x 1,559 = 55,731,132

This can also be written as 22 x 33 x 3311 x 1,5591 = 55,731,132

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


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