The LCM is the smallest positive number that all of the numbers divide into evenly.
1. List the prime factors of each number.
2. Multiply each factor the greatest number of times it occurs in either number.
The number 11 is not a prime number because it only has one positive factor, which is itself.
Not prime
The LCM of 1,11,1 is the result of multiplying
all prime factors the greatest number of times they occur in either number.
11
The factor for x+1x+1 is x+1x+1 itself.
(x+1)=x+1(x+1)=x+1
(x+1)(x+1) occurs 11 time.
The factor for x+3x+3 is x+3x+3 itself.
(x+3)=x+3(x+3)=x+3
(x+3)(x+3) occurs 11 time.
The LCM of x+1,x+3x+1,x+3 is the result of multiplying all factors the greatest number of times they occur in either term.
(x+1)(x+3)(x+1)(x+3)