Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1121 and 1129 the smallest integer that is 1265609 that is divisible by both numbers.
Least Common Multiple (LCM) of 1121 and 1129 is 1265609.
LCM(1121,1129) = 1265609
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 1121 and 1129. First we will calculate the prime factors of 1121 and 1129.
Prime Factorization of 1121
19 | 1121 |
59 | 59 |
1 |
Prime factors of 1121 are 19,59. Prime factorization of 1121 in exponential form is:
1121 = 191×591
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 1121 and 1129.
LCM(1121,1129) = 191×591×11291
LCM(1121,1129) = 1265609
Factors of 1121
List of positive integer factors of 1121 that divides 1121 without a remainder.
1, 19, 59, 1121
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 1121 and 1129, than apply into the LCM equation.
GCF(1121,1129) = 1
LCM(1121,1129) = ( 1121 × 1129) / 1
LCM(1121,1129) = 1265609 / 1
LCM(1121,1129) = 1265609
(i) The LCM of 1129 and 1121 is associative
LCM of 1121 and 1129 = LCM of 1129 and 1121
1. What is the LCM of 1121 and 1129?
Answer: LCM of 1121 and 1129 is 1265609.
2. What are the Factors of 1121?
Answer: Factors of 1121 are 1, 19, 59, 1121. There are 4 integers that are factors of 1121. The greatest factor of 1121 is 1121.
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 1121 and 1129?
Answer:
Least Common Multiple of 1121 and 1129 = 1265609
Step 1: Find the prime factorization of 1121
1121 = 19 x 59
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 = 1265609 = 19 x 59 x 1129
Step 4: Therefore, the least common multiple of 1121 and 1129 is 1265609.