Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1111 and 1115 the smallest integer that is 1238765 that is divisible by both numbers.
Least Common Multiple (LCM) of 1111 and 1115 is 1238765.
LCM(1111,1115) = 1238765
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 1111 and 1115. First we will calculate the prime factors of 1111 and 1115.
Prime Factorization of 1111
11 | 1111 |
101 | 101 |
1 |
Prime factors of 1111 are 11,101. Prime factorization of 1111 in exponential form is:
1111 = 111×1011
Prime Factorization of 1115
5 | 1115 |
223 | 223 |
1 |
Prime factors of 1115 are 5,223. Prime factorization of 1115 in exponential form is:
1115 = 51×2231
Now multiplying the highest exponent prime factors to calculate the LCM of 1111 and 1115.
LCM(1111,1115) = 51×111×1011×2231
LCM(1111,1115) = 1238765
Factors of 1111
List of positive integer factors of 1111 that divides 1111 without a remainder.
1, 11, 101, 1111
Factors of 1115
List of positive integer factors of 1115 that divides 1115 without a remainder.
1, 5, 223, 1115
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1111 and 1115, than apply into the LCM equation.
GCF(1111,1115) = 1
LCM(1111,1115) = ( 1111 × 1115) / 1
LCM(1111,1115) = 1238765 / 1
LCM(1111,1115) = 1238765
(i) The LCM of 1115 and 1111 is associative
LCM of 1111 and 1115 = LCM of 1115 and 1111
1. What is the LCM of 1111 and 1115?
Answer: LCM of 1111 and 1115 is 1238765.
2. What are the Factors of 1111?
Answer: Factors of 1111 are 1, 11, 101, 1111. There are 4 integers that are factors of 1111. The greatest factor of 1111 is 1111.
3. What are the Factors of 1115?
Answer: Factors of 1115 are 1, 5, 223, 1115. There are 4 integers that are factors of 1115. The greatest factor of 1115 is 1115.
4. How to Find the LCM of 1111 and 1115?
Answer:
Least Common Multiple of 1111 and 1115 = 1238765
Step 1: Find the prime factorization of 1111
1111 = 11 x 101
Step 2: Find the prime factorization of 1115
1115 = 5 x 223
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1238765 = 5 x 11 x 101 x 223
Step 4: Therefore, the least common multiple of 1111 and 1115 is 1238765.