GCF of 2 and 24
GCF of 2 and 24 is the largest possible number that divides 2 and 24 exactly without any remainder. The factors of 2 and 24 are 1, 2 and 1, 2, 3, 4, 6, 8, 12, 24 respectively. There are 3 commonly used methods to find the GCF of 2 and 24 - Euclidean algorithm, long division, and prime factorization.
1. | GCF of 2 and 24 |
2. | List of Methods |
3. | Solved Examples |
4. | FAQs |
What is GCF of 2 and 24?
Answer: GCF of 2 and 24 is 2.

Explanation:
The GCF of two non-zero integers, x(2) and y(24), is the greatest positive integer m(2) that divides both x(2) and y(24) without any remainder.
Methods to Find GCF of 2 and 24
Let's look at the different methods for finding the GCF of 2 and 24.
- Using Euclid's Algorithm
- Prime Factorization Method
- Long Division Method
GCF of 2 and 24 by Euclidean Algorithm
As per the Euclidean Algorithm, GCF(X, Y) = GCF(Y, X mod Y)
where X > Y and mod is the modulo operator.
Here X = 24 and Y = 2
- GCF(24, 2) = GCF(2, 24 mod 2) = GCF(2, 0)
- GCF(2, 0) = 2 (∵ GCF(X, 0) = |X|, where X ≠ 0)
Therefore, the value of GCF of 2 and 24 is 2.
GCF of 2 and 24 by Prime Factorization
Prime factorization of 2 and 24 is (2) and (2 × 2 × 2 × 3) respectively. As visible, 2 and 24 have only one common prime factor i.e. 2. Hence, the GCF of 2 and 24 is 2.
GCF of 2 and 24 by Long Division

GCF of 2 and 24 is the divisor that we get when the remainder becomes 0 after doing long division repeatedly.
- Step 1: Divide 24 (larger number) by 2 (smaller number).
- Step 2: Since the remainder = 0, the divisor (2) is the GCF of 2 and 24.
The corresponding divisor (2) is the GCF of 2 and 24.
☛ Also Check:
- GCF of 25 and 40 = 5
- GCF of 40 and 100 = 20
- GCF of 2 and 7 = 1
- GCF of 20 and 25 = 5
- GCF of 9 and 30 = 3
- GCF of 84 and 105 = 21
- GCF of 51 and 68 = 17
GCF of 2 and 24 Examples
-
Example 1: The product of two numbers is 48. If their GCF is 2, what is their LCM?
Solution:
Given: GCF = 2 and product of numbers = 48
∵ LCM × GCF = product of numbers
⇒ LCM = Product/GCF = 48/2
Therefore, the LCM is 24. -
Example 2: For two numbers, GCF = 2 and LCM = 24. If one number is 2, find the other number.
Solution:
Given: GCF (x, 2) = 2 and LCM (x, 2) = 24
∵ GCF × LCM = 2 × (x)
⇒ x = (GCF × LCM)/2
⇒ x = (2 × 24)/2
⇒ x = 24
Therefore, the other number is 24. -
Example 3: Find the GCF of 2 and 24, if their LCM is 24.
Solution:
∵ LCM × GCF = 2 × 24
⇒ GCF(2, 24) = (2 × 24)/24 = 2
Therefore, the greatest common factor of 2 and 24 is 2.
FAQs on GCF of 2 and 24
What is the GCF of 2 and 24?
The GCF of 2 and 24 is 2. To calculate the GCF (Greatest Common Factor) of 2 and 24, we need to factor each number (factors of 2 = 1, 2; factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24) and choose the greatest factor that exactly divides both 2 and 24, i.e., 2.
How to Find the GCF of 2 and 24 by Prime Factorization?
To find the GCF of 2 and 24, we will find the prime factorization of the given numbers, i.e. 2 = 2; 24 = 2 × 2 × 2 × 3.
⇒ Since 2 is the only common prime factor of 2 and 24. Hence, GCF (2, 24) = 2.
☛ Prime Numbers
How to Find the GCF of 2 and 24 by Long Division Method?
To find the GCF of 2, 24 using long division method, 24 is divided by 2. The corresponding divisor (2) when remainder equals 0 is taken as GCF.
If the GCF of 24 and 2 is 2, Find its LCM.
GCF(24, 2) × LCM(24, 2) = 24 × 2
Since the GCF of 24 and 2 = 2
⇒ 2 × LCM(24, 2) = 48
Therefore, LCM = 24
☛ GCF Calculator
What are the Methods to Find GCF of 2 and 24?
There are three commonly used methods to find the GCF of 2 and 24.
- By Euclidean Algorithm
- By Prime Factorization
- By Long Division
What is the Relation Between LCM and GCF of 2, 24?
The following equation can be used to express the relation between LCM and GCF of 2 and 24, i.e. GCF × LCM = 2 × 24.
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