Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1123 and 1129 the smallest integer that is 1267867 that is divisible by both numbers.
Least Common Multiple (LCM) of 1123 and 1129 is 1267867.
LCM(1123,1129) = 1267867
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 1123 and 1129. First we will calculate the prime factors of 1123 and 1129.
Prime Factorization of 1123
1123 | 1123 |
1 |
Prime factors of 1123 are 1123. Prime factorization of 1123 in exponential form is:
1123 = 11231
Prime Factorization of 1129
1129 | 1129 |
1 |
Prime factors of 1129 are 1129. Prime factorization of 1129 in exponential form is:
1129 = 11291
Now multiplying the highest exponent prime factors to calculate the LCM of 1123 and 1129.
LCM(1123,1129) = 11231×11291
LCM(1123,1129) = 1267867
Factors of 1123
List of positive integer factors of 1123 that divides 1123 without a remainder.
1, 1123
Factors of 1129
List of positive integer factors of 1129 that divides 1129 without a remainder.
1, 1129
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1123 and 1129, than apply into the LCM equation.
GCF(1123,1129) = 1
LCM(1123,1129) = ( 1123 × 1129) / 1
LCM(1123,1129) = 1267867 / 1
LCM(1123,1129) = 1267867
(i) The LCM of 1129 and 1123 is associative
LCM of 1123 and 1129 = LCM of 1129 and 1123
1. What is the LCM of 1123 and 1129?
Answer: LCM of 1123 and 1129 is 1267867.
2. What are the Factors of 1123?
Answer: Factors of 1123 are 1, 1123. There are 2 integers that are factors of 1123. The greatest factor of 1123 is 1123.
3. What are the Factors of 1129?
Answer: Factors of 1129 are 1, 1129. There are 2 integers that are factors of 1129. The greatest factor of 1129 is 1129.
4. How to Find the LCM of 1123 and 1129?
Answer:
Least Common Multiple of 1123 and 1129 = 1267867
Step 1: Find the prime factorization of 1123
1123 = 1123
Step 2: Find the prime factorization of 1129
1129 = 1129
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1267867 = 1123 x 1129
Step 4: Therefore, the least common multiple of 1123 and 1129 is 1267867.