Q: What are the prime factors of the number 122,355,352?

 A: 2, 7, 457, 683

Why are those the prime factors of the number 122,355,352?

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 122,355,352

122,355,352
Factor Arrows
261,177,676
Factor Arrows
230,588,838
Factor Arrows
215,294,419
Factor Arrows
72,184,917
Factor Arrows
7312,131
Factor Arrows
457683

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, 457, 683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 457 x 683 = 122,355,352

This can also be written as 23 x 72 x 4571 x 6831 = 122,355,352

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


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