GCF of 30 and 36
GCF of 30 and 36 is the largest possible number that divides 30 and 36 exactly without any remainder. The factors of 30 and 36 are 1, 2, 3, 5, 6, 10, 15, 30 and 1, 2, 3, 4, 6, 9, 12, 18, 36 respectively. There are 3 commonly used methods to find the GCF of 30 and 36  prime factorization, long division, and Euclidean algorithm.
1.  GCF of 30 and 36 
2.  List of Methods 
3.  Solved Examples 
4.  FAQs 
What is GCF of 30 and 36?
Answer: GCF of 30 and 36 is 6.
Explanation:
The GCF of two nonzero integers, x(30) and y(36), is the greatest positive integer m(6) that divides both x(30) and y(36) without any remainder.
Methods to Find GCF of 30 and 36
The methods to find the GCF of 30 and 36 are explained below.
 Listing Common Factors
 Using Euclid's Algorithm
 Long Division Method
GCF of 30 and 36 by Listing Common Factors
 Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
 Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
There are 4 common factors of 30 and 36, that are 1, 2, 3, and 6. Therefore, the greatest common factor of 30 and 36 is 6.
GCF of 30 and 36 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 = 36 and Y = 30
 GCF(36, 30) = GCF(30, 36 mod 30) = GCF(30, 6)
 GCF(30, 6) = GCF(6, 30 mod 6) = GCF(6, 0)
 GCF(6, 0) = 6 (∵ GCF(X, 0) = X, where X ≠ 0)
Therefore, the value of GCF of 30 and 36 is 6.
GCF of 30 and 36 by Long Division
GCF of 30 and 36 is the divisor that we get when the remainder becomes 0 after doing long division repeatedly.
 Step 1: Divide 36 (larger number) by 30 (smaller number).
 Step 2: Since the remainder ≠ 0, we will divide the divisor of step 1 (30) by the remainder (6).
 Step 3: Repeat this process until the remainder = 0.
The corresponding divisor (6) is the GCF of 30 and 36.
☛ Also Check:
 GCF of 48 and 60 = 12
 GCF of 50 and 75 = 25
 GCF of 6 and 10 = 2
 GCF of 42, 28 and 70 = 14
 GCF of 14 and 20 = 2
 GCF of 68 and 102 = 34
 GCF of 20 and 25 = 5
GCF of 30 and 36 Examples

Example 1: For two numbers, GCF = 6 and LCM = 180. If one number is 36, find the other number.
Solution:
Given: GCF (z, 36) = 6 and LCM (z, 36) = 180
∵ GCF × LCM = 36 × (z)
⇒ z = (GCF × LCM)/36
⇒ z = (6 × 180)/36
⇒ z = 30
Therefore, the other number is 30. 
Example 2: Find the GCF of 30 and 36, if their LCM is 180.
Solution:
∵ LCM × GCF = 30 × 36
⇒ GCF(30, 36) = (30 × 36)/180 = 6
Therefore, the greatest common factor of 30 and 36 is 6. 
Example 3: The product of two numbers is 1080. If their GCF is 6, what is their LCM?
Solution:
Given: GCF = 6 and product of numbers = 1080
∵ LCM × GCF = product of numbers
⇒ LCM = Product/GCF = 1080/6
Therefore, the LCM is 180.
FAQs on GCF of 30 and 36
What is the GCF of 30 and 36?
The GCF of 30 and 36 is 6. To calculate the greatest common factor (GCF) of 30 and 36, we need to factor each number (factors of 30 = 1, 2, 3, 5, 6, 10, 15, 30; factors of 36 = 1, 2, 3, 4, 6, 9, 12, 18, 36) and choose the greatest factor that exactly divides both 30 and 36, i.e., 6.
If the GCF of 36 and 30 is 6, Find its LCM.
GCF(36, 30) × LCM(36, 30) = 36 × 30
Since the GCF of 36 and 30 = 6
⇒ 6 × LCM(36, 30) = 1080
Therefore, LCM = 180
☛ Greatest Common Factor Calculator
How to Find the GCF of 30 and 36 by Prime Factorization?
To find the GCF of 30 and 36, we will find the prime factorization of the given numbers, i.e. 30 = 2 × 3 × 5; 36 = 2 × 2 × 3 × 3.
⇒ Since 2, 3 are common terms in the prime factorization of 30 and 36. Hence, GCF(30, 36) = 2 × 3 = 6
☛ Prime Number
How to Find the GCF of 30 and 36 by Long Division Method?
To find the GCF of 30, 36 using long division method, 36 is divided by 30. The corresponding divisor (6) when remainder equals 0 is taken as GCF.
What are the Methods to Find GCF of 30 and 36?
There are three commonly used methods to find the GCF of 30 and 36.
 By Long Division
 By Listing Common Factors
 By Prime Factorization
What is the Relation Between LCM and GCF of 30, 36?
The following equation can be used to express the relation between Least Common Multiple (LCM) and GCF of 30 and 36, i.e. GCF × LCM = 30 × 36.
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