The factors of 121 are 1, 11, 121.
Here is how you calculate the factors of 121. The first two factors - and sometimes the only two - are the number itself, and 1.
- Try 1. 1 x 121 = 121, so put these into our factor list.
- Take 2... no good. 121/2 isn't a whole number. So we skip 2.
- Now take 3... no. 121/3 isn't a whole number. So we skip 3.
- Next try 4... no luck. 121/4 isn't a whole number. So we skip 4.
- Now try 5... nope! 121/5 isn't a whole number. So we skip 5.
- Try 6... no good. 121/6 isn't a whole number. So we skip 6.
- Take 7... no. 121/7 isn't a whole number. So we skip 7.
- Now take 8... no luck. 121/8 isn't a whole number. So we skip 8.
- Next try 9... nope! 121/9 isn't a whole number. So we skip 9.
- Now try 10... no good. 121/10 isn't a whole number. So we skip 10.
- Try 11. 11 x 11 = 121, so we add it to our list of factors. There are no numbers between 11 and itself, so we can stop.
What are the prime factors of 121? What is the prime factorization of 121?
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