What is the Greatest Common Factor of 66538 and 66542?

Greatest common factor (GCF) of 66538 and 66542 is 2.

GCF(66538,66542) = 2

We will now calculate the prime factors of 66538 and 66542, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66538 and 66542.

How to find the GCF of 66538 and 66542?

We will first find the prime factorization of 66538 and 66542. After we will calculate the factors of 66538 and 66542 and find the biggest common factor number .

Step-1: Prime Factorization of 66538

Prime factors of 66538 are 2, 17, 19, 103. Prime factorization of 66538 in exponential form is:

66538 = 2¹ × 17¹ × 19¹ × 103¹

Step-2: Prime Factorization of 66542

Prime factors of 66542 are 2, 7, 97. Prime factorization of 66542 in exponential form is:

66542 = 2¹ × 7³ × 97¹

Step-3: Factors of 66538

List of positive integer factors of 66538 that divides 66538 without a remainder.

1, 2, 17, 19, 34, 38, 103, 206, 323, 646, 1751, 1957, 3502, 3914, 33269

Step-4: Factors of 66542

List of positive integer factors of 66542 that divides 66538 without a remainder.

1, 2, 7, 14, 49, 97, 98, 194, 343, 679, 686, 1358, 4753, 9506, 33271

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66538 and 66542. The biggest common factor number is the GCF number.
So the greatest common factor 66538 and 66542 is 2.

Also check out the Least Common Multiple of 66538 and 66542