Q: What are the prime factors of the number 426,313,344?

 A: 2, 3, 53, 20947

Why are those the prime factors of the number 426,313,344?

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 426,313,344

426,313,344
Factor Arrows
2213,156,672
Factor Arrows
2106,578,336
Factor Arrows
253,289,168
Factor Arrows
226,644,584
Factor Arrows
213,322,292
Factor Arrows
26,661,146
Factor Arrows
23,330,573
Factor Arrows
31,110,191
Factor Arrows
5320,947

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, 53, 20947

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 3 x 53 x 20,947 = 426,313,344

This can also be written as 27 x 31 x 531 x 20,9471 = 426,313,344

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


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