Q: What are the prime factors of the number 48,891,216?

 A: 2, 3, 11, 29, 31, 103

Why are those the prime factors of the number 48,891,216?

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 48,891,216

48,891,216
Factor Arrows
224,445,608
Factor Arrows
212,222,804
Factor Arrows
26,111,402
Factor Arrows
23,055,701
Factor Arrows
31,018,567
Factor Arrows
1192,597
Factor Arrows
293,193
Factor Arrows
31103

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, 11, 29, 31, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 29 x 31 x 103 = 48,891,216

This can also be written as 24 x 31 x 111 x 291 x 311 x 1031 = 48,891,216

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


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