What is the Greatest Common Factor of 7761 and 7771?

Greatest common factor (GCF) of 7761 and 7771 is 1.

GCF(7761,7771) = 1

We will now calculate the prime factors of 7761 and 7771, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7761 and 7771.

How to find the GCF of 7761 and 7771?

We will first find the prime factorization of 7761 and 7771. After we will calculate the factors of 7761 and 7771 and find the biggest common factor number .

Step-1: Prime Factorization of 7761

Prime factors of 7761 are 3, 13, 199. Prime factorization of 7761 in exponential form is:

7761 = 3¹ × 13¹ × 199¹

Step-2: Prime Factorization of 7771

Prime factors of 7771 are 19, 409. Prime factorization of 7771 in exponential form is:

7771 = 19¹ × 409¹

Step-3: Factors of 7761

List of positive integer factors of 7761 that divides 7761 without a remainder.

1, 3, 13, 39, 199, 597, 2587

Step-4: Factors of 7771

List of positive integer factors of 7771 that divides 7761 without a remainder.

1, 19, 409

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7761 and 7771. The biggest common factor number is the GCF number.
So the greatest common factor 7761 and 7771 is 1.

Also check out the Least Common Multiple of 7761 and 7771