LCM of 16 and 36
LCM of 16 and 36 is the smallest number among all common multiples of 16 and 36. The first few multiples of 16 and 36 are (16, 32, 48, 64, 80, 96, . . . ) and (36, 72, 108, 144, 180, 216, 252, . . . ) respectively. There are 3 commonly used methods to find LCM of 16 and 36 - by division method, by prime factorization, and by listing multiples.
1. | LCM of 16 and 36 |
2. | List of Methods |
3. | Solved Examples |
4. | FAQs |
What is the LCM of 16 and 36?
Answer: LCM of 16 and 36 is 144.
Explanation:
The LCM of two non-zero integers, x(16) and y(36), is the smallest positive integer m(144) that is divisible by both x(16) and y(36) without any remainder.
Methods to Find LCM of 16 and 36
The methods to find the LCM of 16 and 36 are explained below.
- By Listing Multiples
- By Prime Factorization Method
- By Division Method
LCM of 16 and 36 by Listing Multiples
To calculate the LCM of 16 and 36 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 16 (16, 32, 48, 64, 80, 96, . . . ) and 36 (36, 72, 108, 144, 180, 216, 252, . . . . )
- Step 2: The common multiples from the multiples of 16 and 36 are 144, 288, . . .
- Step 3: The smallest common multiple of 16 and 36 is 144.
∴ The least common multiple of 16 and 36 = 144.
LCM of 16 and 36 by Prime Factorization
Prime factorization of 16 and 36 is (2 × 2 × 2 × 2) = 24 and (2 × 2 × 3 × 3) = 22 × 32 respectively. LCM of 16 and 36 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 24 × 32 = 144.
Hence, the LCM of 16 and 36 by prime factorization is 144.
LCM of 16 and 36 by Division Method
To calculate the LCM of 16 and 36 by the division method, we will divide the numbers(16, 36) by their prime factors (preferably common). The product of these divisors gives the LCM of 16 and 36.
- Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 16 and 36. Write this prime number(2) on the left of the given numbers(16 and 36), separated as per the ladder arrangement.
- Step 2: If any of the given numbers (16, 36) 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 16 and 36 is the product of all prime numbers on the left, i.e. LCM(16, 36) by division method = 2 × 2 × 2 × 2 × 3 × 3 = 144.
☛ Also Check:
- LCM of 10, 25, 35 and 40 - 1400
- LCM of 30 and 54 - 270
- LCM of 6 and 30 - 30
- LCM of 4 and 18 - 36
- LCM of 12 and 60 - 60
- LCM of 20 and 50 - 100
- LCM of 20 and 30 - 60
LCM of 16 and 36 Examples
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Example 1: The GCD and LCM of two numbers are 4 and 144 respectively. If one number is 36, find the other number.
Solution:
Let the other number be y.
∵ GCD × LCM = 36 × y
⇒ y = (GCD × LCM)/36
⇒ y = (4 × 144)/36
⇒ y = 16
Therefore, the other number is 16. -
Example 2: Verify the relationship between GCF and LCM of 16 and 36.
Solution:
The relation between GCF and LCM of 16 and 36 is given as,
LCM(16, 36) × GCF(16, 36) = Product of 16, 36
Prime factorization of 16 and 36 is given as, 16 = (2 × 2 × 2 × 2) = 24 and 36 = (2 × 2 × 3 × 3) = 22 × 32
LCM(16, 36) = 144
GCF(16, 36) = 4
LHS = LCM(16, 36) × GCF(16, 36) = 144 × 4 = 576
RHS = Product of 16, 36 = 16 × 36 = 576
⇒ LHS = RHS = 576
Hence, verified. -
Example 3: Find the smallest number that is divisible by 16 and 36 exactly.
Solution:
The smallest number that is divisible by 16 and 36 exactly is their LCM.
⇒ Multiples of 16 and 36:- Multiples of 16 = 16, 32, 48, 64, 80, 96, 112, 128, 144, . . . .
- Multiples of 36 = 36, 72, 108, 144, 180, 216, 252, . . . .
Therefore, the LCM of 16 and 36 is 144.
FAQs on LCM of 16 and 36
What is the LCM of 16 and 36?
The LCM of 16 and 36 is 144. To find the least common multiple (LCM) of 16 and 36, we need to find the multiples of 16 and 36 (multiples of 16 = 16, 32, 48, 64 . . . . 144; multiples of 36 = 36, 72, 108, 144) and choose the smallest multiple that is exactly divisible by 16 and 36, i.e., 144.
How to Find the LCM of 16 and 36 by Prime Factorization?
To find the LCM of 16 and 36 using prime factorization, we will find the prime factors, (16 = 2 × 2 × 2 × 2) and (36 = 2 × 2 × 3 × 3). LCM of 16 and 36 is the product of prime factors raised to their respective highest exponent among the numbers 16 and 36.
⇒ LCM of 16, 36 = 24 × 32 = 144.
If the LCM of 36 and 16 is 144, Find its GCF.
LCM(36, 16) × GCF(36, 16) = 36 × 16
Since the LCM of 36 and 16 = 144
⇒ 144 × GCF(36, 16) = 576
Therefore, the GCF = 576/144 = 4.
What is the Relation Between GCF and LCM of 16, 36?
The following equation can be used to express the relation between GCF and LCM of 16 and 36, i.e. GCF × LCM = 16 × 36.
What are the Methods to Find LCM of 16 and 36?
The commonly used methods to find the LCM of 16 and 36 are:
- Prime Factorization Method
- Division Method
- Listing Multiples
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