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 73 the smallest integer that is 4818 that is divisible by both numbers.
Least Common Multiple (LCM) of 66 and 73 is 4818.
LCM(66,73) = 4818
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 73. First we will calculate the prime factors of 66 and 73.
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 73
73 | 73 |
1 |
Prime factors of 73 are 73. Prime factorization of 73 in exponential form is:
73 = 731
Now multiplying the highest exponent prime factors to calculate the LCM of 66 and 73.
LCM(66,73) = 21×31×111×731
LCM(66,73) = 4818
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 73
List of positive integer factors of 73 that divides 73 without a remainder.
1, 73
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66 and 73, than apply into the LCM equation.
GCF(66,73) = 1
LCM(66,73) = ( 66 × 73) / 1
LCM(66,73) = 4818 / 1
LCM(66,73) = 4818
(i) The LCM of 73 and 66 is associative
LCM of 66 and 73 = LCM of 73 and 66
1. What is the LCM of 66 and 73?
Answer: LCM of 66 and 73 is 4818.
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 73?
Answer: Factors of 73 are 1, 73. There are 2 integers that are factors of 73. The greatest factor of 73 is 73.
4. How to Find the LCM of 66 and 73?
Answer:
Least Common Multiple of 66 and 73 = 4818
Step 1: Find the prime factorization of 66
66 = 2 x 3 x 11
Step 2: Find the prime factorization of 73
73 = 73
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4818 = 2 x 3 x 11 x 73
Step 4: Therefore, the least common multiple of 66 and 73 is 4818.