Q: What are the prime factors of the number 55,383,867?

 A: 3, 7, 11, 233

Why are those the prime factors of the number 55,383,867?

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 55,383,867

55,383,867
Factor Arrows
318,461,289
Factor Arrows
36,153,763
Factor Arrows
7879,109
Factor Arrows
7125,587
Factor Arrows
717,941
Factor Arrows
72,563
Factor Arrows
11233

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:

3, 7, 11, 233

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 7 x 7 x 11 x 233 = 55,383,867

This can also be written as 32 x 74 x 111 x 2331 = 55,383,867

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


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