GCF of 4 and 10 is the largest possible number that divides 4 and 10 exactly without any remainder. The factors of 4 and 10 are 1, 2, 4 and 1, 2, 5, 10 respectively. There are 3 commonly used methods to find the GCF of 4 and 10 - prime factorization, long division, and Euclidean algorithm.
| 1. | GCF of 4 and 10 |
| 2. | List of Methods |
| 3. | Solved Examples |
| 4. | FAQs |
What is GCF of 4 and 10?
Answer: GCF of 4 and 10 is 2.
Explanation:
The GCF of two non-zero integers, x(4) and y(10), is the greatest positive integer m(2) that divides both x(4) and y(10) without any remainder.
Methods to Find GCF of 4 and 10
Let's look at the different methods for finding the GCF of 4 and 10.
- Listing Common Factors
- Long Division Method
- Prime Factorization Method
GCF of 4 and 10 by Listing Common Factors
- Factors of 4: 1, 2, 4
- Factors of 10: 1, 2, 5, 10
There are 2 common factors of 4 and 10, that are 1 and 2. Therefore, the greatest common factor of 4 and 10 is 2.
GCF of 4 and 10 by Long Division
GCF of 4 and 10 is the divisor that we get when the remainder becomes 0 after doing long division repeatedly.
- Step 1: Divide 10 (larger number) by 4 (smaller number).
- Step 2: Since the remainder ≠ 0, we will divide the divisor of step 1 (4) by the remainder (2).
- Step 3: Repeat this process until the remainder = 0.
The corresponding divisor (2) is the GCF of 4 and 10.
GCF of 4 and 10 by Prime Factorization
Prime factorization of 4 and 10 is (2 × 2) and (2 × 5) respectively. As visible, 4 and 10 have only one common prime factor i.e. 2. Hence, the GCF of 4 and 10 is 2.
☛ Also Check:
- GCF of 40 and 56 = 8
- GCF of 15 and 50 = 5
- GCF of 33 and 66 = 33
- GCF of 30 and 36 = 6
- GCF of 10, 30 and 45 = 5
- GCF of 9 and 24 = 3
- GCF of 36 and 100 = 4
GCF of 4 and 10 Examples
Example 1: Find the GCF of 4 and 10, if their LCM is 20.
Solution:
∵ LCM × GCF = 4 × 10
⇒ GCF(4, 10) = (4 × 10)/20 = 2
Therefore, the greatest common factor of 4 and 10 is 2.Example 2: The product of two numbers is 40. If their GCF is 2, what is their LCM?
Solution:
Given: GCF = 2 and product of numbers = 40
∵ LCM × GCF = product of numbers
⇒ LCM = Product/GCF = 40/2
Therefore, the LCM is 20.Example 3: Find the greatest number that divides 4 and 10 exactly.
Solution:
The greatest number that divides 4 and 10 exactly is their greatest common factor, i.e. GCF of 4 and 10.
⇒ Factors of 4 and 10:- Factors of 4 = 1, 2, 4
- Factors of 10 = 1, 2, 5, 10
Therefore, the GCF of 4 and 10 is 2.
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FAQs on GCF of 4 and 10
What is the GCF of 4 and 10?
The GCF of 4 and 10 is 2. To calculate the greatest common factor (GCF) of 4 and 10, we need to factor each number (factors of 4 = 1, 2, 4; factors of 10 = 1, 2, 5, 10) and choose the greatest factor that exactly divides both 4 and 10, i.e., 2.
How to Find the GCF of 4 and 10 by Prime Factorization?
To find the GCF of 4 and 10, we will find the prime factorization of the given numbers, i.e. 4 = 2 × 2; 10 = 2 × 5.
⇒ Since 2 is the only common prime factor of 4 and 10. Hence, GCF (4, 10) = 2.
☛ Prime Numbers
If the GCF of 10 and 4 is 2, Find its LCM.
GCF(10, 4) × LCM(10, 4) = 10 × 4
Since the GCF of 10 and 4 = 2
⇒ 2 × LCM(10, 4) = 40
Therefore, LCM = 20
☛ Greatest Common Factor Calculator
How to Find the GCF of 4 and 10 by Long Division Method?
To find the GCF of 4, 10 using long division method, 10 is divided by 4. The corresponding divisor (2) when remainder equals 0 is taken as GCF.
What are the Methods to Find GCF of 4 and 10?
There are three commonly used methods to find the GCF of 4 and 10.
- By Prime Factorization
- By Euclidean Algorithm
- By Long Division
What is the Relation Between LCM and GCF of 4, 10?
The following equation can be used to express the relation between LCM (Least Common Multiple) and GCF of 4 and 10, i.e. GCF × LCM = 4 × 10.
