What is the Greatest Common Factor of 7742 and 7758?

Greatest common factor (GCF) of 7742 and 7758 is 2.

GCF(7742,7758) = 2

We will now calculate the prime factors of 7742 and 7758, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7742 and 7758.

How to find the GCF of 7742 and 7758?

We will first find the prime factorization of 7742 and 7758. After we will calculate the factors of 7742 and 7758 and find the biggest common factor number .

Step-1: Prime Factorization of 7742

Prime factors of 7742 are 2, 7, 79. Prime factorization of 7742 in exponential form is:

7742 = 2¹ × 7² × 79¹

Step-2: Prime Factorization of 7758

Prime factors of 7758 are 2, 3, 431. Prime factorization of 7758 in exponential form is:

7758 = 2¹ × 3² × 431¹

Step-3: Factors of 7742

List of positive integer factors of 7742 that divides 7742 without a remainder.

1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 3871

Step-4: Factors of 7758

List of positive integer factors of 7758 that divides 7742 without a remainder.

1, 2, 3, 6, 9, 18, 431, 862, 1293, 2586, 3879

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7742 and 7758. The biggest common factor number is the GCF number.
So the greatest common factor 7742 and 7758 is 2.

Also check out the Least Common Multiple of 7742 and 7758