What is the Greatest Common Factor of 7661 and 7665?

Greatest common factor (GCF) of 7661 and 7665 is 1.

GCF(7661,7665) = 1

We will now calculate the prime factors of 7661 and 7665, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7661 and 7665.

How to find the GCF of 7661 and 7665?

We will first find the prime factorization of 7661 and 7665. After we will calculate the factors of 7661 and 7665 and find the biggest common factor number .

Step-1: Prime Factorization of 7661

Prime factors of 7661 are 47, 163. Prime factorization of 7661 in exponential form is:

7661 = 47¹ × 163¹

Step-2: Prime Factorization of 7665

Prime factors of 7665 are 3, 5, 7, 73. Prime factorization of 7665 in exponential form is:

7665 = 3¹ × 5¹ × 7¹ × 73¹

Step-3: Factors of 7661

List of positive integer factors of 7661 that divides 7661 without a remainder.

1, 47, 163

Step-4: Factors of 7665

List of positive integer factors of 7665 that divides 7661 without a remainder.

1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7661 and 7665. The biggest common factor number is the GCF number.
So the greatest common factor 7661 and 7665 is 1.

Also check out the Least Common Multiple of 7661 and 7665