Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 67 and 72 the smallest integer that is 4824 that is divisible by both numbers.
Least Common Multiple (LCM) of 67 and 72 is 4824.
LCM(67,72) = 4824
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 67 and 72. First we will calculate the prime factors of 67 and 72.
Prime Factorization of 67
67 | 67 |
1 |
Prime factors of 67 are 67. Prime factorization of 67 in exponential form is:
67 = 671
Prime Factorization of 72
2 | 72 |
2 | 36 |
2 | 18 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 72 are 2,3. Prime factorization of 72 in exponential form is:
72 = 23×32
Now multiplying the highest exponent prime factors to calculate the LCM of 67 and 72.
LCM(67,72) = 23×32×671
LCM(67,72) = 4824
Factors of 67
List of positive integer factors of 67 that divides 67 without a remainder.
1, 67
Factors of 72
List of positive integer factors of 72 that divides 72 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67 and 72, than apply into the LCM equation.
GCF(67,72) = 1
LCM(67,72) = ( 67 × 72) / 1
LCM(67,72) = 4824 / 1
LCM(67,72) = 4824
(i) The LCM of 72 and 67 is associative
LCM of 67 and 72 = LCM of 72 and 67
1. What is the LCM of 67 and 72?
Answer: LCM of 67 and 72 is 4824.
2. 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.
3. What are the Factors of 72?
Answer: Factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72. There are 12 integers that are factors of 72. The greatest factor of 72 is 72.
4. How to Find the LCM of 67 and 72?
Answer:
Least Common Multiple of 67 and 72 = 4824
Step 1: Find the prime factorization of 67
67 = 67
Step 2: Find the prime factorization of 72
72 = 2 x 2 x 2 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4824 = 2 x 2 x 2 x 3 x 3 x 67
Step 4: Therefore, the least common multiple of 67 and 72 is 4824.