Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1361 and 1365 the smallest integer that is 1857765 that is divisible by both numbers.
Least Common Multiple (LCM) of 1361 and 1365 is 1857765.
LCM(1361,1365) = 1857765
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 1361 and 1365. First we will calculate the prime factors of 1361 and 1365.
Prime Factorization of 1361
1361 | 1361 |
1 |
Prime factors of 1361 are 1361. Prime factorization of 1361 in exponential form is:
1361 = 13611
Prime Factorization of 1365
3 | 1365 |
5 | 455 |
7 | 91 |
13 | 13 |
1 |
Prime factors of 1365 are 3, 5, 7,13. Prime factorization of 1365 in exponential form is:
1365 = 31×51×71×131
Now multiplying the highest exponent prime factors to calculate the LCM of 1361 and 1365.
LCM(1361,1365) = 31×51×71×131×13611
LCM(1361,1365) = 1857765
Factors of 1361
List of positive integer factors of 1361 that divides 1361 without a remainder.
1, 1361
Factors of 1365
List of positive integer factors of 1365 that divides 1365 without a remainder.
1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1361 and 1365, than apply into the LCM equation.
GCF(1361,1365) = 1
LCM(1361,1365) = ( 1361 × 1365) / 1
LCM(1361,1365) = 1857765 / 1
LCM(1361,1365) = 1857765
(i) The LCM of 1365 and 1361 is associative
LCM of 1361 and 1365 = LCM of 1365 and 1361
1. What is the LCM of 1361 and 1365?
Answer: LCM of 1361 and 1365 is 1857765.
2. What are the Factors of 1361?
Answer: Factors of 1361 are 1, 1361. There are 2 integers that are factors of 1361. The greatest factor of 1361 is 1361.
3. What are the Factors of 1365?
Answer: Factors of 1365 are 1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365. There are 16 integers that are factors of 1365. The greatest factor of 1365 is 1365.
4. How to Find the LCM of 1361 and 1365?
Answer:
Least Common Multiple of 1361 and 1365 = 1857765
Step 1: Find the prime factorization of 1361
1361 = 1361
Step 2: Find the prime factorization of 1365
1365 = 3 x 5 x 7 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1857765 = 3 x 5 x 7 x 13 x 1361
Step 4: Therefore, the least common multiple of 1361 and 1365 is 1857765.