Q: What are the prime factors of the number 122,300?

 A: 2, 5, 1223

Why are those the prime factors of the number 122,300?

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 122,300

122,300
Factor Arrows
261,150
Factor Arrows
230,575
Factor Arrows
56,115
Factor Arrows
51,223

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, 5, 1223

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 1,223 = 122,300

This can also be written as 22 x 52 x 1,2231 = 122,300

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


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