What is the Greatest Common Factor of 7690 and 7700?

Greatest common factor (GCF) of 7690 and 7700 is 10.

GCF(7690,7700) = 10

We will now calculate the prime factors of 7690 and 7700, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7690 and 7700.

How to find the GCF of 7690 and 7700?

We will first find the prime factorization of 7690 and 7700. After we will calculate the factors of 7690 and 7700 and find the biggest common factor number .

Step-1: Prime Factorization of 7690

Prime factors of 7690 are 2, 5, 769. Prime factorization of 7690 in exponential form is:

7690 = 2¹ × 5¹ × 769¹

Step-2: Prime Factorization of 7700

Prime factors of 7700 are 2, 5, 7, 11. Prime factorization of 7700 in exponential form is:

7700 = 2² × 5² × 7¹ × 11¹

Step-3: Factors of 7690

List of positive integer factors of 7690 that divides 7690 without a remainder.

1, 2, 5, 10, 769, 1538, 3845

Step-4: Factors of 7700

List of positive integer factors of 7700 that divides 7690 without a remainder.

1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7690 and 7700. The biggest common factor number is the GCF number.
So the greatest common factor 7690 and 7700 is 10.

Also check out the Least Common Multiple of 7690 and 7700