What is the Greatest Common Factor of 61905 and 61918?

Greatest common factor (GCF) of 61905 and 61918 is 1.

GCF(61905,61918) = 1

We will now calculate the prime factors of 61905 and 61918, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61905 and 61918.

How to find the GCF of 61905 and 61918?

We will first find the prime factorization of 61905 and 61918. After we will calculate the factors of 61905 and 61918 and find the biggest common factor number .

Step-1: Prime Factorization of 61905

Prime factors of 61905 are 3, 5, 4127. Prime factorization of 61905 in exponential form is:

61905 = 3¹ × 5¹ × 4127¹

Step-2: Prime Factorization of 61918

Prime factors of 61918 are 2, 83, 373. Prime factorization of 61918 in exponential form is:

61918 = 2¹ × 83¹ × 373¹

Step-3: Factors of 61905

List of positive integer factors of 61905 that divides 61905 without a remainder.

1, 3, 5, 15, 4127, 12381, 20635

Step-4: Factors of 61918

List of positive integer factors of 61918 that divides 61905 without a remainder.

1, 2, 83, 166, 373, 746, 30959

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61905 and 61918. The biggest common factor number is the GCF number.
So the greatest common factor 61905 and 61918 is 1.

Also check out the Least Common Multiple of 61905 and 61918