Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6861 and 6865 the smallest integer that is 47100765 that is divisible by both numbers.
Least Common Multiple (LCM) of 6861 and 6865 is 47100765.
LCM(6861,6865) = 47100765
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 6861 and 6865. First we will calculate the prime factors of 6861 and 6865.
Prime Factorization of 6861
3 | 6861 |
2287 | 2287 |
1 |
Prime factors of 6861 are 3,2287. Prime factorization of 6861 in exponential form is:
6861 = 31×22871
Prime Factorization of 6865
5 | 6865 |
1373 | 1373 |
1 |
Prime factors of 6865 are 5,1373. Prime factorization of 6865 in exponential form is:
6865 = 51×13731
Now multiplying the highest exponent prime factors to calculate the LCM of 6861 and 6865.
LCM(6861,6865) = 31×51×13731×22871
LCM(6861,6865) = 47100765
Factors of 6861
List of positive integer factors of 6861 that divides 6861 without a remainder.
1, 3, 2287, 6861
Factors of 6865
List of positive integer factors of 6865 that divides 6865 without a remainder.
1, 5, 1373, 6865
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6861 and 6865, than apply into the LCM equation.
GCF(6861,6865) = 1
LCM(6861,6865) = ( 6861 × 6865) / 1
LCM(6861,6865) = 47100765 / 1
LCM(6861,6865) = 47100765
(i) The LCM of 6865 and 6861 is associative
LCM of 6861 and 6865 = LCM of 6865 and 6861
1. What is the LCM of 6861 and 6865?
Answer: LCM of 6861 and 6865 is 47100765.
2. What are the Factors of 6861?
Answer: Factors of 6861 are 1, 3, 2287, 6861. There are 4 integers that are factors of 6861. The greatest factor of 6861 is 6861.
3. What are the Factors of 6865?
Answer: Factors of 6865 are 1, 5, 1373, 6865. There are 4 integers that are factors of 6865. The greatest factor of 6865 is 6865.
4. How to Find the LCM of 6861 and 6865?
Answer:
Least Common Multiple of 6861 and 6865 = 47100765
Step 1: Find the prime factorization of 6861
6861 = 3 x 2287
Step 2: Find the prime factorization of 6865
6865 = 5 x 1373
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 47100765 = 3 x 5 x 1373 x 2287
Step 4: Therefore, the least common multiple of 6861 and 6865 is 47100765.