Q: What are the prime factors of the number 122,565,600?

 A: 2, 3, 5, 29, 587

Why are those the prime factors of the number 122,565,600?

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 122,565,600

122,565,600
Factor Arrows
261,282,800
Factor Arrows
230,641,400
Factor Arrows
215,320,700
Factor Arrows
27,660,350
Factor Arrows
23,830,175
Factor Arrows
31,276,725
Factor Arrows
3425,575
Factor Arrows
585,115
Factor Arrows
517,023
Factor Arrows
29587

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, 5, 29, 587

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 x 29 x 587 = 122,565,600

This can also be written as 25 x 32 x 52 x 291 x 5871 = 122,565,600

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


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