What is the Greatest Common Factor of 66770 and 66781?

Greatest common factor (GCF) of 66770 and 66781 is 11.

GCF(66770,66781) = 11

We will now calculate the prime factors of 66770 and 66781, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66770 and 66781.

How to find the GCF of 66770 and 66781?

We will first find the prime factorization of 66770 and 66781. After we will calculate the factors of 66770 and 66781 and find the biggest common factor number .

Step-1: Prime Factorization of 66770

Prime factors of 66770 are 2, 5, 11, 607. Prime factorization of 66770 in exponential form is:

66770 = 2¹ × 5¹ × 11¹ × 607¹

Step-2: Prime Factorization of 66781

Prime factors of 66781 are 11, 13, 467. Prime factorization of 66781 in exponential form is:

66781 = 11¹ × 13¹ × 467¹

Step-3: Factors of 66770

List of positive integer factors of 66770 that divides 66770 without a remainder.

1, 2, 5, 10, 11, 22, 55, 110, 607, 1214, 3035, 6070, 6677, 13354, 33385

Step-4: Factors of 66781

List of positive integer factors of 66781 that divides 66770 without a remainder.

1, 11, 13, 143, 467, 5137, 6071

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66770 and 66781. The biggest common factor number is the GCF number.
So the greatest common factor 66770 and 66781 is 11.

Also check out the Least Common Multiple of 66770 and 66781