What is the Greatest Common Factor of 7645 and 7661?

Greatest common factor (GCF) of 7645 and 7661 is 1.

GCF(7645,7661) = 1

We will now calculate the prime factors of 7645 and 7661, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7645 and 7661.

How to find the GCF of 7645 and 7661?

We will first find the prime factorization of 7645 and 7661. After we will calculate the factors of 7645 and 7661 and find the biggest common factor number .

Step-1: Prime Factorization of 7645

Prime factors of 7645 are 5, 11, 139. Prime factorization of 7645 in exponential form is:

7645 = 5¹ × 11¹ × 139¹

Step-2: Prime Factorization of 7661

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

7661 = 47¹ × 163¹

Step-3: Factors of 7645

List of positive integer factors of 7645 that divides 7645 without a remainder.

1, 5, 11, 55, 139, 695, 1529

Step-4: Factors of 7661

List of positive integer factors of 7661 that divides 7645 without a remainder.

1, 47, 163

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7645 and 7661. The biggest common factor number is the GCF number.
So the greatest common factor 7645 and 7661 is 1.

Also check out the Least Common Multiple of 7645 and 7661