Q: What are the prime factors of the number 743,446,326?

 A: 2, 3, 7, 19, 19013

Why are those the prime factors of the number 743,446,326?

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 743,446,326

743,446,326
Factor Arrows
2371,723,163
Factor Arrows
3123,907,721
Factor Arrows
717,701,103
Factor Arrows
72,528,729
Factor Arrows
7361,247
Factor Arrows
1919,013

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, 7, 19, 19013

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 7 x 19 x 19,013 = 743,446,326

This can also be written as 21 x 31 x 73 x 191 x 19,0131 = 743,446,326

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


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