Q: What are the prime factors of the number 122,093,248?

 A: 2, 29, 157, 419

Why are those the prime factors of the number 122,093,248?

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 122,093,248

122,093,248
Factor Arrows
261,046,624
Factor Arrows
230,523,312
Factor Arrows
215,261,656
Factor Arrows
27,630,828
Factor Arrows
23,815,414
Factor Arrows
21,907,707
Factor Arrows
2965,783
Factor Arrows
157419

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, 29, 157, 419

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 29 x 157 x 419 = 122,093,248

This can also be written as 26 x 291 x 1571 x 4191 = 122,093,248

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


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