Q: What are the prime factors of the number 74,308,608?

 A: 2, 3, 11, 733

Why are those the prime factors of the number 74,308,608?

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 74,308,608

74,308,608
Factor Arrows
237,154,304
Factor Arrows
218,577,152
Factor Arrows
29,288,576
Factor Arrows
24,644,288
Factor Arrows
22,322,144
Factor Arrows
21,161,072
Factor Arrows
2580,536
Factor Arrows
2290,268
Factor Arrows
2145,134
Factor Arrows
272,567
Factor Arrows
324,189
Factor Arrows
38,063
Factor Arrows
11733

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, 733

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 2 x 3 x 3 x 11 x 733 = 74,308,608

This can also be written as 210 x 32 x 111 x 7331 = 74,308,608

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


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