LCM of 24 and 27
LCM of 24 and 27 is the smallest number among all common multiples of 24 and 27. The first few multiples of 24 and 27 are (24, 48, 72, 96, 120, . . . ) and (27, 54, 81, 108, . . . ) respectively. There are 3 commonly used methods to find LCM of 24 and 27 - by listing multiples, by division method, and by prime factorization.
1. | LCM of 24 and 27 |
2. | List of Methods |
3. | Solved Examples |
4. | FAQs |
What is the LCM of 24 and 27?
Answer: LCM of 24 and 27 is 216.
Explanation:
The LCM of two non-zero integers, x(24) and y(27), is the smallest positive integer m(216) that is divisible by both x(24) and y(27) without any remainder.
Methods to Find LCM of 24 and 27
Let's look at the different methods for finding the LCM of 24 and 27.
- By Prime Factorization Method
- By Division Method
- By Listing Multiples
LCM of 24 and 27 by Prime Factorization
Prime factorization of 24 and 27 is (2 × 2 × 2 × 3) = 23 × 31 and (3 × 3 × 3) = 33 respectively. LCM of 24 and 27 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 23 × 33 = 216.
Hence, the LCM of 24 and 27 by prime factorization is 216.
LCM of 24 and 27 by Division Method
To calculate the LCM of 24 and 27 by the division method, we will divide the numbers(24, 27) by their prime factors (preferably common). The product of these divisors gives the LCM of 24 and 27.
- Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 24 and 27. Write this prime number(2) on the left of the given numbers(24 and 27), separated as per the ladder arrangement.
- Step 2: If any of the given numbers (24, 27) is a multiple of 2, divide it by 2 and write the quotient below it. Bring down any number that is not divisible by the prime number.
- Step 3: Continue the steps until only 1s are left in the last row.
The LCM of 24 and 27 is the product of all prime numbers on the left, i.e. LCM(24, 27) by division method = 2 × 2 × 2 × 3 × 3 × 3 = 216.
LCM of 24 and 27 by Listing Multiples
To calculate the LCM of 24 and 27 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 24 (24, 48, 72, 96, 120, . . . ) and 27 (27, 54, 81, 108, . . . . )
- Step 2: The common multiples from the multiples of 24 and 27 are 216, 432, . . .
- Step 3: The smallest common multiple of 24 and 27 is 216.
∴ The least common multiple of 24 and 27 = 216.
☛ Also Check:
- LCM of 5, 6 and 9 - 90
- LCM of 5, 6, 7 and 8 - 840
- LCM of 40 and 56 - 280
- LCM of 9 and 12 - 36
- LCM of 35 and 70 - 70
- LCM of 378, 180 and 420 - 3780
- LCM of 6 and 20 - 60
LCM of 24 and 27 Examples
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Example 1: Find the smallest number that is divisible by 24 and 27 exactly.
Solution:
The smallest number that is divisible by 24 and 27 exactly is their LCM.
⇒ Multiples of 24 and 27:- Multiples of 24 = 24, 48, 72, 96, 120, 144, 168, 192, 216, . . . .
- Multiples of 27 = 27, 54, 81, 108, 135, 162, 189, 216, . . . .
Therefore, the LCM of 24 and 27 is 216.
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Example 2: Verify the relationship between GCF and LCM of 24 and 27.
Solution:
The relation between GCF and LCM of 24 and 27 is given as,
LCM(24, 27) × GCF(24, 27) = Product of 24, 27
Prime factorization of 24 and 27 is given as, 24 = (2 × 2 × 2 × 3) = 23 × 31 and 27 = (3 × 3 × 3) = 33
LCM(24, 27) = 216
GCF(24, 27) = 3
LHS = LCM(24, 27) × GCF(24, 27) = 216 × 3 = 648
RHS = Product of 24, 27 = 24 × 27 = 648
⇒ LHS = RHS = 648
Hence, verified. -
Example 3: The product of two numbers is 648. If their GCD is 3, what is their LCM?
Solution:
Given: GCD = 3
product of numbers = 648
∵ LCM × GCD = product of numbers
⇒ LCM = Product/GCD = 648/3
Therefore, the LCM is 216.
The probable combination for the given case is LCM(24, 27) = 216.
FAQs on LCM of 24 and 27
What is the LCM of 24 and 27?
The LCM of 24 and 27 is 216. To find the least common multiple (LCM) of 24 and 27, we need to find the multiples of 24 and 27 (multiples of 24 = 24, 48, 72, 96 . . . . 216; multiples of 27 = 27, 54, 81, 108 . . . . 216) and choose the smallest multiple that is exactly divisible by 24 and 27, i.e., 216.
What is the Least Perfect Square Divisible by 24 and 27?
The least number divisible by 24 and 27 = LCM(24, 27)
LCM of 24 and 27 = 2 × 2 × 2 × 3 × 3 × 3 [Incomplete pair(s): 2, 3]
⇒ Least perfect square divisible by each 24 and 27 = LCM(24, 27) × 2 × 3 = 1296 [Square root of 1296 = √1296 = ±36]
Therefore, 1296 is the required number.
What is the Relation Between GCF and LCM of 24, 27?
The following equation can be used to express the relation between GCF and LCM of 24 and 27, i.e. GCF × LCM = 24 × 27.
How to Find the LCM of 24 and 27 by Prime Factorization?
To find the LCM of 24 and 27 using prime factorization, we will find the prime factors, (24 = 2 × 2 × 2 × 3) and (27 = 3 × 3 × 3). LCM of 24 and 27 is the product of prime factors raised to their respective highest exponent among the numbers 24 and 27.
⇒ LCM of 24, 27 = 23 × 33 = 216.
If the LCM of 27 and 24 is 216, Find its GCF.
LCM(27, 24) × GCF(27, 24) = 27 × 24
Since the LCM of 27 and 24 = 216
⇒ 216 × GCF(27, 24) = 648
Therefore, the GCF = 648/216 = 3.
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