Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 66 and 67 the smallest integer that is 4422 that is divisible by both numbers.
Least Common Multiple (LCM) of 66 and 67 is 4422.
LCM(66,67) = 4422
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 66 and 67. First we will calculate the prime factors of 66 and 67.
Prime Factorization of 66
2 | 66 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 66 are 2, 3,11. Prime factorization of 66 in exponential form is:
66 = 21×31×111
Prime Factorization of 67
67 | 67 |
1 |
Prime factors of 67 are 67. Prime factorization of 67 in exponential form is:
67 = 671
Now multiplying the highest exponent prime factors to calculate the LCM of 66 and 67.
LCM(66,67) = 21×31×111×671
LCM(66,67) = 4422
Factors of 66
List of positive integer factors of 66 that divides 66 without a remainder.
1, 2, 3, 6, 11, 22, 33, 66
Factors of 67
List of positive integer factors of 67 that divides 67 without a remainder.
1, 67
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66 and 67, than apply into the LCM equation.
GCF(66,67) = 1
LCM(66,67) = ( 66 × 67) / 1
LCM(66,67) = 4422 / 1
LCM(66,67) = 4422
(i) The LCM of 67 and 66 is associative
LCM of 66 and 67 = LCM of 67 and 66
1. What is the LCM of 66 and 67?
Answer: LCM of 66 and 67 is 4422.
2. What are the Factors of 66?
Answer: Factors of 66 are 1, 2, 3, 6, 11, 22, 33, 66. There are 8 integers that are factors of 66. The greatest factor of 66 is 66.
3. What are the Factors of 67?
Answer: Factors of 67 are 1, 67. There are 2 integers that are factors of 67. The greatest factor of 67 is 67.
4. How to Find the LCM of 66 and 67?
Answer:
Least Common Multiple of 66 and 67 = 4422
Step 1: Find the prime factorization of 66
66 = 2 x 3 x 11
Step 2: Find the prime factorization of 67
67 = 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4422 = 2 x 3 x 11 x 67
Step 4: Therefore, the least common multiple of 66 and 67 is 4422.