LCM of 5 and 24
LCM of 5 and 24 is the smallest number among all common multiples of 5 and 24. The first few multiples of 5 and 24 are (5, 10, 15, 20, 25, 30, 35, . . . ) and (24, 48, 72, 96, 120, 144, 168, . . . ) respectively. There are 3 commonly used methods to find LCM of 5 and 24 - by listing multiples, by prime factorization, and by division method.
1. | LCM of 5 and 24 |
2. | List of Methods |
3. | Solved Examples |
4. | FAQs |
What is the LCM of 5 and 24?
Answer: LCM of 5 and 24 is 120.
Explanation:
The LCM of two non-zero integers, x(5) and y(24), is the smallest positive integer m(120) that is divisible by both x(5) and y(24) without any remainder.
Methods to Find LCM of 5 and 24
The methods to find the LCM of 5 and 24 are explained below.
- By Prime Factorization Method
- By Division Method
- By Listing Multiples
LCM of 5 and 24 by Prime Factorization
Prime factorization of 5 and 24 is (5) = 51 and (2 × 2 × 2 × 3) = 23 × 31 respectively. LCM of 5 and 24 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 23 × 31 × 51 = 120.
Hence, the LCM of 5 and 24 by prime factorization is 120.
LCM of 5 and 24 by Division Method
To calculate the LCM of 5 and 24 by the division method, we will divide the numbers(5, 24) by their prime factors (preferably common). The product of these divisors gives the LCM of 5 and 24.
- Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 5 and 24. Write this prime number(2) on the left of the given numbers(5 and 24), separated as per the ladder arrangement.
- Step 2: If any of the given numbers (5, 24) 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 5 and 24 is the product of all prime numbers on the left, i.e. LCM(5, 24) by division method = 2 × 2 × 2 × 3 × 5 = 120.
LCM of 5 and 24 by Listing Multiples
To calculate the LCM of 5 and 24 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 5 (5, 10, 15, 20, 25, 30, 35, . . . ) and 24 (24, 48, 72, 96, 120, 144, 168, . . . . )
- Step 2: The common multiples from the multiples of 5 and 24 are 120, 240, . . .
- Step 3: The smallest common multiple of 5 and 24 is 120.
∴ The least common multiple of 5 and 24 = 120.
☛ Also Check:
- LCM of 9 and 24 - 72
- LCM of 6 and 14 - 42
- LCM of 10 and 24 - 120
- LCM of 5 and 7 - 35
- LCM of 42 and 70 - 210
- LCM of 30 and 54 - 270
- LCM of 8, 9 and 10 - 360
LCM of 5 and 24 Examples
-
Example 1: The GCD and LCM of two numbers are 1 and 120 respectively. If one number is 5, find the other number.
Solution:
Let the other number be m.
∵ GCD × LCM = 5 × m
⇒ m = (GCD × LCM)/5
⇒ m = (1 × 120)/5
⇒ m = 24
Therefore, the other number is 24. -
Example 2: The product of two numbers is 120. If their GCD is 1, what is their LCM?
Solution:
Given: GCD = 1
product of numbers = 120
∵ LCM × GCD = product of numbers
⇒ LCM = Product/GCD = 120/1
Therefore, the LCM is 120.
The probable combination for the given case is LCM(5, 24) = 120. -
Example 3: Find the smallest number that is divisible by 5 and 24 exactly.
Solution:
The value of LCM(5, 24) will be the smallest number that is exactly divisible by 5 and 24.
⇒ Multiples of 5 and 24:- Multiples of 5 = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, . . . ., 100, 105, 110, 115, 120, . . . .
- Multiples of 24 = 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, . . . ., 72, 96, 120, . . . .
Therefore, the LCM of 5 and 24 is 120.
FAQs on LCM of 5 and 24
What is the LCM of 5 and 24?
The LCM of 5 and 24 is 120. To find the least common multiple (LCM) of 5 and 24, we need to find the multiples of 5 and 24 (multiples of 5 = 5, 10, 15, 20 . . . . 120; multiples of 24 = 24, 48, 72, 96 . . . . 120) and choose the smallest multiple that is exactly divisible by 5 and 24, i.e., 120.
Which of the following is the LCM of 5 and 24? 120, 20, 36, 45
The value of LCM of 5, 24 is the smallest common multiple of 5 and 24. The number satisfying the given condition is 120.
What are the Methods to Find LCM of 5 and 24?
The commonly used methods to find the LCM of 5 and 24 are:
- Prime Factorization Method
- Division Method
- Listing Multiples
How to Find the LCM of 5 and 24 by Prime Factorization?
To find the LCM of 5 and 24 using prime factorization, we will find the prime factors, (5 = 5) and (24 = 2 × 2 × 2 × 3). LCM of 5 and 24 is the product of prime factors raised to their respective highest exponent among the numbers 5 and 24.
⇒ LCM of 5, 24 = 23 × 31 × 51 = 120.
If the LCM of 24 and 5 is 120, Find its GCF.
LCM(24, 5) × GCF(24, 5) = 24 × 5
Since the LCM of 24 and 5 = 120
⇒ 120 × GCF(24, 5) = 120
Therefore, the greatest common factor (GCF) = 120/120 = 1.
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