Q: What are the prime factors of the number 55,837,782?

 A: 2, 3, 7, 11, 13, 1033

Why are those the prime factors of the number 55,837,782?

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 55,837,782

55,837,782
Factor Arrows
227,918,891
Factor Arrows
39,306,297
Factor Arrows
33,102,099
Factor Arrows
31,034,033
Factor Arrows
7147,719
Factor Arrows
1113,429
Factor Arrows
131,033

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, 7, 11, 13, 1033

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 11 x 13 x 1,033 = 55,837,782

This can also be written as 21 x 33 x 71 x 111 x 131 x 1,0331 = 55,837,782

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


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