What is the Greatest Common Factor of 7420 and 7438?

Greatest common factor (GCF) of 7420 and 7438 is 2.

GCF(7420,7438) = 2

We will now calculate the prime factors of 7420 and 7438, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7420 and 7438.

How to find the GCF of 7420 and 7438?

We will first find the prime factorization of 7420 and 7438. After we will calculate the factors of 7420 and 7438 and find the biggest common factor number .

Step-1: Prime Factorization of 7420

Prime factors of 7420 are 2, 5, 7, 53. Prime factorization of 7420 in exponential form is:

7420 = 2² × 5¹ × 7¹ × 53¹

Step-2: Prime Factorization of 7438

Prime factors of 7438 are 2, 3719. Prime factorization of 7438 in exponential form is:

7438 = 2¹ × 3719¹

Step-3: Factors of 7420

List of positive integer factors of 7420 that divides 7420 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710

Step-4: Factors of 7438

List of positive integer factors of 7438 that divides 7420 without a remainder.

1, 2, 3719

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7420 and 7438. The biggest common factor number is the GCF number.
So the greatest common factor 7420 and 7438 is 2.

Also check out the Least Common Multiple of 7420 and 7438