Q: What are the prime factors of the number 67,391,973?

 A: 3, 11, 103, 2203

Why are those the prime factors of the number 67,391,973?

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 67,391,973

67,391,973
Factor Arrows
322,463,991
Factor Arrows
37,487,997
Factor Arrows
32,495,999
Factor Arrows
11226,909
Factor Arrows
1032,203

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, 11, 103, 2203

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 103 x 2,203 = 67,391,973

This can also be written as 33 x 111 x 1031 x 2,2031 = 67,391,973

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


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