What is the Greatest Common Factor of 61815 and 61831?

Greatest common factor (GCF) of 61815 and 61831 is 1.

GCF(61815,61831) = 1

We will now calculate the prime factors of 61815 and 61831, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61815 and 61831.

How to find the GCF of 61815 and 61831?

We will first find the prime factorization of 61815 and 61831. After we will calculate the factors of 61815 and 61831 and find the biggest common factor number .

Step-1: Prime Factorization of 61815

Prime factors of 61815 are 3, 5, 13, 317. Prime factorization of 61815 in exponential form is:

61815 = 3¹ × 5¹ × 13¹ × 317¹

Step-2: Prime Factorization of 61831

Prime factors of 61831 are 7, 11, 73. Prime factorization of 61831 in exponential form is:

61831 = 7¹ × 11² × 73¹

Step-3: Factors of 61815

List of positive integer factors of 61815 that divides 61815 without a remainder.

1, 3, 5, 13, 15, 39, 65, 195, 317, 951, 1585, 4121, 4755, 12363, 20605

Step-4: Factors of 61831

List of positive integer factors of 61831 that divides 61815 without a remainder.

1, 7, 11, 73, 77, 121, 511, 803, 847, 5621, 8833

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61815 and 61831. The biggest common factor number is the GCF number.
So the greatest common factor 61815 and 61831 is 1.

Also check out the Least Common Multiple of 61815 and 61831