Greatest Common Factor of 2 and 4

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 2, 4 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 2 and 4 is 2.

GCF(2,4) = 2

GCF of 2 and 4

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 2 and 4

GCF of 2 and 4 is 2

Prime Factorization of 2


2 2
1

Prime factors of 2 are 2. Prime factorization of 2 in exponential form is:

2 = 21

Prime Factorization of 4


2 4
2 2
1

Prime factors of 4 are 2.Prime factorization of 4 in exponential form is:

4 = 22

∴ So by taking common prime factors GCF of 2 and 4 is 2

Greatest Common Factor of 2 and 4 by matching factors method

Factors of 2

List of positive integer factors of 2 that divides 2 without a remainder.

1,2

Factors of 4

List of positive integer factors of 4 that divides 4 without a remainder.

1,2,4

Greatest Common Factor

We found the factors and prime factorization of 2 and 4. The biggest common factor number is the GCF number.
So the greatest common factor 2 and 4 is 2.

Also check out the Least Common Multiple of 2 and 4

Properties of GCF 2 and 4

(i) The GCF of 2 and 4 is associative

GCF of 2 and 4 = GCF of 4 and 2

Related Greatest Common Factor of 2

Related Greatest Common Factor of 4

Frequently Asked Questions on GCF of 2 and 4

1. What is the GCF of 2 and 4?

Answer: GCF of 2 and 4 is 2.

2. What are the Factors of 2?

Answer: Factors of 2 are 1, 2. There are 2 integers that are factors of 2. The greatest factor of 2 is 2.

3. What are the Factors of 4?

Answer: Factors of 4 are 1, 2, 4. There are 3 integers that are factors of 4. The greatest factor of 4 is 4.

4. How to Find the GCF of 2 and 4?

Answer:

Greatest Common Factor of 2 and 4 = 2

Step 1: Find the prime factorization of 2

2 = 2

Step 2: Find the prime factorization of 4

4 = 2 x 2

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 2

Step 4: Therefore, the greatest common factor of 2 and 4 is 2