What is the Greatest Common Factor of 61970 and 61981?

Greatest common factor (GCF) of 61970 and 61981 is 1.

GCF(61970,61981) = 1

We will now calculate the prime factors of 61970 and 61981, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61970 and 61981.

How to find the GCF of 61970 and 61981?

We will first find the prime factorization of 61970 and 61981. After we will calculate the factors of 61970 and 61981 and find the biggest common factor number .

Step-1: Prime Factorization of 61970

Prime factors of 61970 are 2, 5, 6197. Prime factorization of 61970 in exponential form is:

61970 = 2¹ × 5¹ × 6197¹

Step-2: Prime Factorization of 61981

Prime factors of 61981 are 61981. Prime factorization of 61981 in exponential form is:

61981 = 61981¹

Step-3: Factors of 61970

List of positive integer factors of 61970 that divides 61970 without a remainder.

1, 2, 5, 10, 6197, 12394, 30985

Step-4: Factors of 61981

List of positive integer factors of 61981 that divides 61970 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61970 and 61981. The biggest common factor number is the GCF number.
So the greatest common factor 61970 and 61981 is 1.

Also check out the Least Common Multiple of 61970 and 61981