What is the Greatest Common Factor of 1945 and 1962?

Greatest common factor (GCF) of 1945 and 1962 is 1.

GCF(1945,1962) = 1

We will now calculate the prime factors of 1945 and 1962, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1945 and 1962.

How to find the GCF of 1945 and 1962?

We will first find the prime factorization of 1945 and 1962. After we will calculate the factors of 1945 and 1962 and find the biggest common factor number .

Step-1: Prime Factorization of 1945

Prime factors of 1945 are 5, 389. Prime factorization of 1945 in exponential form is:

1945 = 5¹ × 389¹

Step-2: Prime Factorization of 1962

Prime factors of 1962 are 2, 3, 109. Prime factorization of 1962 in exponential form is:

1962 = 2¹ × 3² × 109¹

Step-3: Factors of 1945

List of positive integer factors of 1945 that divides 1945 without a remainder.

1, 5, 389

Step-4: Factors of 1962

List of positive integer factors of 1962 that divides 1945 without a remainder.

1, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1945 and 1962. The biggest common factor number is the GCF number.
So the greatest common factor 1945 and 1962 is 1.

Also check out the Least Common Multiple of 1945 and 1962