Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6386 and 6391 the smallest integer that is 40812926 that is divisible by both numbers.
Least Common Multiple (LCM) of 6386 and 6391 is 40812926.
LCM(6386,6391) = 40812926
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 6386 and 6391. First we will calculate the prime factors of 6386 and 6391.
Prime Factorization of 6386
2 | 6386 |
31 | 3193 |
103 | 103 |
1 |
Prime factors of 6386 are 2, 31,103. Prime factorization of 6386 in exponential form is:
6386 = 21×311×1031
Prime Factorization of 6391
7 | 6391 |
11 | 913 |
83 | 83 |
1 |
Prime factors of 6391 are 7, 11,83. Prime factorization of 6391 in exponential form is:
6391 = 71×111×831
Now multiplying the highest exponent prime factors to calculate the LCM of 6386 and 6391.
LCM(6386,6391) = 21×71×111×311×831×1031
LCM(6386,6391) = 40812926
Factors of 6386
List of positive integer factors of 6386 that divides 6386 without a remainder.
1, 2, 31, 62, 103, 206, 3193, 6386
Factors of 6391
List of positive integer factors of 6391 that divides 6391 without a remainder.
1, 7, 11, 77, 83, 581, 913, 6391
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6386 and 6391, than apply into the LCM equation.
GCF(6386,6391) = 1
LCM(6386,6391) = ( 6386 × 6391) / 1
LCM(6386,6391) = 40812926 / 1
LCM(6386,6391) = 40812926
(i) The LCM of 6391 and 6386 is associative
LCM of 6386 and 6391 = LCM of 6391 and 6386
1. What is the LCM of 6386 and 6391?
Answer: LCM of 6386 and 6391 is 40812926.
2. What are the Factors of 6386?
Answer: Factors of 6386 are 1, 2, 31, 62, 103, 206, 3193, 6386. There are 8 integers that are factors of 6386. The greatest factor of 6386 is 6386.
3. What are the Factors of 6391?
Answer: Factors of 6391 are 1, 7, 11, 77, 83, 581, 913, 6391. There are 8 integers that are factors of 6391. The greatest factor of 6391 is 6391.
4. How to Find the LCM of 6386 and 6391?
Answer:
Least Common Multiple of 6386 and 6391 = 40812926
Step 1: Find the prime factorization of 6386
6386 = 2 x 31 x 103
Step 2: Find the prime factorization of 6391
6391 = 7 x 11 x 83
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 40812926 = 2 x 7 x 11 x 31 x 83 x 103
Step 4: Therefore, the least common multiple of 6386 and 6391 is 40812926.