Q: What are the prime factors of the number 103,330,304?

 A: 2, 7, 11, 2621

Why are those the prime factors of the number 103,330,304?

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 103,330,304

103,330,304
Factor Arrows
251,665,152
Factor Arrows
225,832,576
Factor Arrows
212,916,288
Factor Arrows
26,458,144
Factor Arrows
23,229,072
Factor Arrows
21,614,536
Factor Arrows
2807,268
Factor Arrows
2403,634
Factor Arrows
2201,817
Factor Arrows
728,831
Factor Arrows
112,621

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, 7, 11, 2621

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 11 x 2,621 = 103,330,304

This can also be written as 29 x 71 x 111 x 2,6211 = 103,330,304

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


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