What is the Greatest Common Factor of 81658 and 81668?

Greatest common factor (GCF) of 81658 and 81668 is 2.

GCF(81658,81668) = 2

We will now calculate the prime factors of 81658 and 81668, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81658 and 81668.

How to find the GCF of 81658 and 81668?

We will first find the prime factorization of 81658 and 81668. After we will calculate the factors of 81658 and 81668 and find the biggest common factor number .

Step-1: Prime Factorization of 81658

Prime factors of 81658 are 2, 40829. Prime factorization of 81658 in exponential form is:

81658 = 2¹ × 40829¹

Step-2: Prime Factorization of 81668

Prime factors of 81668 are 2, 17, 1201. Prime factorization of 81668 in exponential form is:

81668 = 2² × 17¹ × 1201¹

Step-3: Factors of 81658

List of positive integer factors of 81658 that divides 81658 without a remainder.

1, 2, 40829

Step-4: Factors of 81668

List of positive integer factors of 81668 that divides 81658 without a remainder.

1, 2, 4, 17, 34, 68, 1201, 2402, 4804, 20417, 40834

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81658 and 81668. The biggest common factor number is the GCF number.
So the greatest common factor 81658 and 81668 is 2.

Also check out the Least Common Multiple of 81658 and 81668