Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2161 and 2165 the smallest integer that is 4678565 that is divisible by both numbers.
Least Common Multiple (LCM) of 2161 and 2165 is 4678565.
LCM(2161,2165) = 4678565
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 2161 and 2165. First we will calculate the prime factors of 2161 and 2165.
Prime Factorization of 2161
2161 | 2161 |
1 |
Prime factors of 2161 are 2161. Prime factorization of 2161 in exponential form is:
2161 = 21611
Prime Factorization of 2165
5 | 2165 |
433 | 433 |
1 |
Prime factors of 2165 are 5,433. Prime factorization of 2165 in exponential form is:
2165 = 51×4331
Now multiplying the highest exponent prime factors to calculate the LCM of 2161 and 2165.
LCM(2161,2165) = 51×4331×21611
LCM(2161,2165) = 4678565
Factors of 2161
List of positive integer factors of 2161 that divides 2161 without a remainder.
1, 2161
Factors of 2165
List of positive integer factors of 2165 that divides 2165 without a remainder.
1, 5, 433, 2165
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2161 and 2165, than apply into the LCM equation.
GCF(2161,2165) = 1
LCM(2161,2165) = ( 2161 × 2165) / 1
LCM(2161,2165) = 4678565 / 1
LCM(2161,2165) = 4678565
(i) The LCM of 2165 and 2161 is associative
LCM of 2161 and 2165 = LCM of 2165 and 2161
1. What is the LCM of 2161 and 2165?
Answer: LCM of 2161 and 2165 is 4678565.
2. What are the Factors of 2161?
Answer: Factors of 2161 are 1, 2161. There are 2 integers that are factors of 2161. The greatest factor of 2161 is 2161.
3. What are the Factors of 2165?
Answer: Factors of 2165 are 1, 5, 433, 2165. There are 4 integers that are factors of 2165. The greatest factor of 2165 is 2165.
4. How to Find the LCM of 2161 and 2165?
Answer:
Least Common Multiple of 2161 and 2165 = 4678565
Step 1: Find the prime factorization of 2161
2161 = 2161
Step 2: Find the prime factorization of 2165
2165 = 5 x 433
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4678565 = 5 x 433 x 2161
Step 4: Therefore, the least common multiple of 2161 and 2165 is 4678565.