What is the Greatest Common Factor of 1955 and 1959?

Greatest common factor (GCF) of 1955 and 1959 is 1.

GCF(1955,1959) = 1

We will now calculate the prime factors of 1955 and 1959, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1955 and 1959.

How to find the GCF of 1955 and 1959?

We will first find the prime factorization of 1955 and 1959. After we will calculate the factors of 1955 and 1959 and find the biggest common factor number .

Step-1: Prime Factorization of 1955

Prime factors of 1955 are 5, 17, 23. Prime factorization of 1955 in exponential form is:

1955 = 5¹ × 17¹ × 23¹

Step-2: Prime Factorization of 1959

Prime factors of 1959 are 3, 653. Prime factorization of 1959 in exponential form is:

1959 = 3¹ × 653¹

Step-3: Factors of 1955

List of positive integer factors of 1955 that divides 1955 without a remainder.

1, 5, 17, 23, 85, 115, 391

Step-4: Factors of 1959

List of positive integer factors of 1959 that divides 1955 without a remainder.

1, 3, 653

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1955 and 1959. The biggest common factor number is the GCF number.
So the greatest common factor 1955 and 1959 is 1.

Also check out the Least Common Multiple of 1955 and 1959