LCM of 2 and 13
LCM of 2 and 13 is the smallest number among all common multiples of 2 and 13. The first few multiples of 2 and 13 are (2, 4, 6, 8, 10, 12, . . . ) and (13, 26, 39, 52, 65, 78, 91, . . . ) respectively. There are 3 commonly used methods to find LCM of 2 and 13 - by prime factorization, by listing multiples, and by division method.
1. | LCM of 2 and 13 |
2. | List of Methods |
3. | Solved Examples |
4. | FAQs |
What is the LCM of 2 and 13?
Answer: LCM of 2 and 13 is 26.
Explanation:
The LCM of two non-zero integers, x(2) and y(13), is the smallest positive integer m(26) that is divisible by both x(2) and y(13) without any remainder.
Methods to Find LCM of 2 and 13
The methods to find the LCM of 2 and 13 are explained below.
- By Prime Factorization Method
- By Division Method
- By Listing Multiples
LCM of 2 and 13 by Prime Factorization
Prime factorization of 2 and 13 is (2) = 21 and (13) = 131 respectively. LCM of 2 and 13 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 21 × 131 = 26.
Hence, the LCM of 2 and 13 by prime factorization is 26.
LCM of 2 and 13 by Division Method
To calculate the LCM of 2 and 13 by the division method, we will divide the numbers(2, 13) by their prime factors (preferably common). The product of these divisors gives the LCM of 2 and 13.
- Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 2 and 13. Write this prime number(2) on the left of the given numbers(2 and 13), separated as per the ladder arrangement.
- Step 2: If any of the given numbers (2, 13) 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 2 and 13 is the product of all prime numbers on the left, i.e. LCM(2, 13) by division method = 2 × 13 = 26.
LCM of 2 and 13 by Listing Multiples
To calculate the LCM of 2 and 13 by listing out the common multiples, we can follow the given below steps:
- Step 1: List a few multiples of 2 (2, 4, 6, 8, 10, 12, . . . ) and 13 (13, 26, 39, 52, 65, 78, 91, . . . . )
- Step 2: The common multiples from the multiples of 2 and 13 are 26, 52, . . .
- Step 3: The smallest common multiple of 2 and 13 is 26.
∴ The least common multiple of 2 and 13 = 26.
☛ Also Check:
- LCM of 9, 12 and 15 - 180
- LCM of 50 and 70 - 350
- LCM of 20, 25 and 30 - 300
- LCM of 15 and 27 - 135
- LCM of 2, 3 and 7 - 42
- LCM of 16, 28 and 40 - 560
- LCM of 63 and 81 - 567
LCM of 2 and 13 Examples
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Example 1: Find the smallest number that is divisible by 2 and 13 exactly.
Solution:
The smallest number that is divisible by 2 and 13 exactly is their LCM.
⇒ Multiples of 2 and 13:- Multiples of 2 = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, . . . .
- Multiples of 13 = 13, 26, 39, 52, 65, . . . .
Therefore, the LCM of 2 and 13 is 26.
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Example 2: The GCD and LCM of two numbers are 1 and 26 respectively. If one number is 2, find the other number.
Solution:
Let the other number be y.
∵ GCD × LCM = 2 × y
⇒ y = (GCD × LCM)/2
⇒ y = (1 × 26)/2
⇒ y = 13
Therefore, the other number is 13. -
Example 3: The product of two numbers is 26. If their GCD is 1, what is their LCM?
Solution:
Given: GCD = 1
product of numbers = 26
∵ LCM × GCD = product of numbers
⇒ LCM = Product/GCD = 26/1
Therefore, the LCM is 26.
The probable combination for the given case is LCM(2, 13) = 26.
FAQs on LCM of 2 and 13
What is the LCM of 2 and 13?
The LCM of 2 and 13 is 26. To find the LCM of 2 and 13, we need to find the multiples of 2 and 13 (multiples of 2 = 2, 4, 6, 8 . . . . 26; multiples of 13 = 13, 26, 39, 52) and choose the smallest multiple that is exactly divisible by 2 and 13, i.e., 26.
What is the Relation Between GCF and LCM of 2, 13?
The following equation can be used to express the relation between GCF and LCM of 2 and 13, i.e. GCF × LCM = 2 × 13.
Which of the following is the LCM of 2 and 13? 18, 5, 32, 26
The value of LCM of 2, 13 is the smallest common multiple of 2 and 13. The number satisfying the given condition is 26.
If the LCM of 13 and 2 is 26, Find its GCF.
LCM(13, 2) × GCF(13, 2) = 13 × 2
Since the LCM of 13 and 2 = 26
⇒ 26 × GCF(13, 2) = 26
Therefore, the greatest common factor (GCF) = 26/26 = 1.
How to Find the LCM of 2 and 13 by Prime Factorization?
To find the LCM of 2 and 13 using prime factorization, we will find the prime factors, (2 = 2) and (13 = 13). LCM of 2 and 13 is the product of prime factors raised to their respective highest exponent among the numbers 2 and 13.
⇒ LCM of 2, 13 = 21 × 131 = 26.
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