LCM of 12 and 48
LCM of 12 and 48 is the smallest number among all common multiples of 12 and 48. The first few multiples of 12 and 48 are (12, 24, 36, 48, 60, 72, . . . ) and (48, 96, 144, 192, 240, . . . ) respectively. There are 3 commonly used methods to find LCM of 12 and 48 - by division method, by prime factorization, and by listing multiples.
1. | LCM of 12 and 48 |
2. | List of Methods |
3. | Solved Examples |
4. | FAQs |
What is the LCM of 12 and 48?
Answer: LCM of 12 and 48 is 48.
Explanation:
The LCM of two non-zero integers, x(12) and y(48), is the smallest positive integer m(48) that is divisible by both x(12) and y(48) without any remainder.
Methods to Find LCM of 12 and 48
The methods to find the LCM of 12 and 48 are explained below.
- By Division Method
- By Listing Multiples
- By Prime Factorization Method
LCM of 12 and 48 by Division Method
To calculate the LCM of 12 and 48 by the division method, we will divide the numbers(12, 48) by their prime factors (preferably common). The product of these divisors gives the LCM of 12 and 48.
- Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 12 and 48. Write this prime number(2) on the left of the given numbers(12 and 48), separated as per the ladder arrangement.
- Step 2: If any of the given numbers (12, 48) 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 12 and 48 is the product of all prime numbers on the left, i.e. LCM(12, 48) by division method = 2 × 2 × 2 × 2 × 3 = 48.
LCM of 12 and 48 by Listing Multiples
To calculate the LCM of 12 and 48 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 12 (12, 24, 36, 48, 60, 72, . . . ) and 48 (48, 96, 144, 192, 240, . . . . )
- Step 2: The common multiples from the multiples of 12 and 48 are 48, 96, . . .
- Step 3: The smallest common multiple of 12 and 48 is 48.
∴ The least common multiple of 12 and 48 = 48.
LCM of 12 and 48 by Prime Factorization
Prime factorization of 12 and 48 is (2 × 2 × 3) = 22 × 31 and (2 × 2 × 2 × 2 × 3) = 24 × 31 respectively. LCM of 12 and 48 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 24 × 31 = 48.
Hence, the LCM of 12 and 48 by prime factorization is 48.
☛ Also Check:
- LCM of 8, 10 and 12 - 120
- LCM of 8, 10 and 15 - 120
- LCM of 72, 126 and 168 - 504
- LCM of 72, 108 and 2100 - 37800
- LCM of 70, 105 and 175 - 1050
- LCM of 7, 8 and 9 - 504
- LCM of 7, 14 and 21 - 42
LCM of 12 and 48 Examples
-
Example 1: Verify the relationship between GCF and LCM of 12 and 48.
Solution:
The relation between GCF and LCM of 12 and 48 is given as,
LCM(12, 48) × GCF(12, 48) = Product of 12, 48
Prime factorization of 12 and 48 is given as, 12 = (2 × 2 × 3) = 22 × 31 and 48 = (2 × 2 × 2 × 2 × 3) = 24 × 31
LCM(12, 48) = 48
GCF(12, 48) = 12
LHS = LCM(12, 48) × GCF(12, 48) = 48 × 12 = 576
RHS = Product of 12, 48 = 12 × 48 = 576
⇒ LHS = RHS = 576
Hence, verified. -
Example 2: The GCD and LCM of two numbers are 12 and 48 respectively. If one number is 48, find the other number.
Solution:
Let the other number be m.
∵ GCD × LCM = 48 × m
⇒ m = (GCD × LCM)/48
⇒ m = (12 × 48)/48
⇒ m = 12
Therefore, the other number is 12. -
Example 3: Find the smallest number that is divisible by 12 and 48 exactly.
Solution:
The smallest number that is divisible by 12 and 48 exactly is their LCM.
⇒ Multiples of 12 and 48:- Multiples of 12 = 12, 24, 36, 48, 60, 72, . . . .
- Multiples of 48 = 48, 96, 144, 192, 240, 288, . . . .
Therefore, the LCM of 12 and 48 is 48.
FAQs on LCM of 12 and 48
What is the LCM of 12 and 48?
The LCM of 12 and 48 is 48. To find the least common multiple of 12 and 48, we need to find the multiples of 12 and 48 (multiples of 12 = 12, 24, 36, 48; multiples of 48 = 48, 96, 144, 192) and choose the smallest multiple that is exactly divisible by 12 and 48, i.e., 48.
What are the Methods to Find LCM of 12 and 48?
The commonly used methods to find the LCM of 12 and 48 are:
- Listing Multiples
- Prime Factorization Method
- Division Method
If the LCM of 48 and 12 is 48, Find its GCF.
LCM(48, 12) × GCF(48, 12) = 48 × 12
Since the LCM of 48 and 12 = 48
⇒ 48 × GCF(48, 12) = 576
Therefore, the greatest common factor = 576/48 = 12.
How to Find the LCM of 12 and 48 by Prime Factorization?
To find the LCM of 12 and 48 using prime factorization, we will find the prime factors, (12 = 2 × 2 × 3) and (48 = 2 × 2 × 2 × 2 × 3). LCM of 12 and 48 is the product of prime factors raised to their respective highest exponent among the numbers 12 and 48.
⇒ LCM of 12, 48 = 24 × 31 = 48.
Which of the following is the LCM of 12 and 48? 40, 48, 36, 50
The value of LCM of 12, 48 is the smallest common multiple of 12 and 48. The number satisfying the given condition is 48.
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