What is the Greatest Common Factor of 61890 and 61898?

Greatest common factor (GCF) of 61890 and 61898 is 2.

GCF(61890,61898) = 2

We will now calculate the prime factors of 61890 and 61898, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61890 and 61898.

How to find the GCF of 61890 and 61898?

We will first find the prime factorization of 61890 and 61898. After we will calculate the factors of 61890 and 61898 and find the biggest common factor number .

Step-1: Prime Factorization of 61890

Prime factors of 61890 are 2, 3, 5, 2063. Prime factorization of 61890 in exponential form is:

61890 = 2¹ × 3¹ × 5¹ × 2063¹

Step-2: Prime Factorization of 61898

Prime factors of 61898 are 2, 30949. Prime factorization of 61898 in exponential form is:

61898 = 2¹ × 30949¹

Step-3: Factors of 61890

List of positive integer factors of 61890 that divides 61890 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2063, 4126, 6189, 10315, 12378, 20630, 30945

Step-4: Factors of 61898

List of positive integer factors of 61898 that divides 61890 without a remainder.

1, 2, 30949

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61890 and 61898. The biggest common factor number is the GCF number.
So the greatest common factor 61890 and 61898 is 2.

Also check out the Least Common Multiple of 61890 and 61898