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 1130 the smallest integer that is 1268990 that is divisible by both numbers.
Least Common Multiple (LCM) of 1123 and 1130 is 1268990.
LCM(1123,1130) = 1268990
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 1130. First we will calculate the prime factors of 1123 and 1130.
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 1130
2 | 1130 |
5 | 565 |
113 | 113 |
1 |
Prime factors of 1130 are 2, 5,113. Prime factorization of 1130 in exponential form is:
1130 = 21×51×1131
Now multiplying the highest exponent prime factors to calculate the LCM of 1123 and 1130.
LCM(1123,1130) = 21×51×1131×11231
LCM(1123,1130) = 1268990
Factors of 1123
List of positive integer factors of 1123 that divides 1123 without a remainder.
1, 1123
Factors of 1130
List of positive integer factors of 1130 that divides 1130 without a remainder.
1, 2, 5, 10, 113, 226, 565, 1130
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1123 and 1130, than apply into the LCM equation.
GCF(1123,1130) = 1
LCM(1123,1130) = ( 1123 × 1130) / 1
LCM(1123,1130) = 1268990 / 1
LCM(1123,1130) = 1268990
(i) The LCM of 1130 and 1123 is associative
LCM of 1123 and 1130 = LCM of 1130 and 1123
1. What is the LCM of 1123 and 1130?
Answer: LCM of 1123 and 1130 is 1268990.
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 1130?
Answer: Factors of 1130 are 1, 2, 5, 10, 113, 226, 565, 1130. There are 8 integers that are factors of 1130. The greatest factor of 1130 is 1130.
4. How to Find the LCM of 1123 and 1130?
Answer:
Least Common Multiple of 1123 and 1130 = 1268990
Step 1: Find the prime factorization of 1123
1123 = 1123
Step 2: Find the prime factorization of 1130
1130 = 2 x 5 x 113
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1268990 = 2 x 5 x 113 x 1123
Step 4: Therefore, the least common multiple of 1123 and 1130 is 1268990.