What is the Greatest Common Factor of 7403 and 7420?

Greatest common factor (GCF) of 7403 and 7420 is 1.

GCF(7403,7420) = 1

We will now calculate the prime factors of 7403 and 7420, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7403 and 7420.

How to find the GCF of 7403 and 7420?

We will first find the prime factorization of 7403 and 7420. After we will calculate the factors of 7403 and 7420 and find the biggest common factor number .

Step-1: Prime Factorization of 7403

Prime factors of 7403 are 11, 673. Prime factorization of 7403 in exponential form is:

7403 = 11¹ × 673¹

Step-2: 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-3: Factors of 7403

List of positive integer factors of 7403 that divides 7403 without a remainder.

1, 11, 673

Step-4: Factors of 7420

List of positive integer factors of 7420 that divides 7403 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7403 and 7420. The biggest common factor number is the GCF number.
So the greatest common factor 7403 and 7420 is 1.

Also check out the Least Common Multiple of 7403 and 7420