Q: What are the prime factors of the number 34,043,744?

 A: 2, 7, 19, 421

Why are those the prime factors of the number 34,043,744?

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 34,043,744

34,043,744
Factor Arrows
217,021,872
Factor Arrows
28,510,936
Factor Arrows
24,255,468
Factor Arrows
22,127,734
Factor Arrows
21,063,867
Factor Arrows
7151,981
Factor Arrows
197,999
Factor Arrows
19421

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, 19, 421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 19 x 19 x 421 = 34,043,744

This can also be written as 25 x 71 x 192 x 4211 = 34,043,744

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


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