What is the Greatest Common Factor of 77387 and 77406?

Greatest common factor (GCF) of 77387 and 77406 is 19.

GCF(77387,77406) = 19

We will now calculate the prime factors of 77387 and 77406, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77387 and 77406.

How to find the GCF of 77387 and 77406?

We will first find the prime factorization of 77387 and 77406. After we will calculate the factors of 77387 and 77406 and find the biggest common factor number .

Step-1: Prime Factorization of 77387

Prime factors of 77387 are 19, 4073. Prime factorization of 77387 in exponential form is:

77387 = 19¹ × 4073¹

Step-2: Prime Factorization of 77406

Prime factors of 77406 are 2, 3, 7, 19, 97. Prime factorization of 77406 in exponential form is:

77406 = 2¹ × 3¹ × 7¹ × 19¹ × 97¹

Step-3: Factors of 77387

List of positive integer factors of 77387 that divides 77387 without a remainder.

1, 19, 4073

Step-4: Factors of 77406

List of positive integer factors of 77406 that divides 77387 without a remainder.

1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 97, 114, 133, 194, 266, 291, 399, 582, 679, 798, 1358, 1843, 2037, 3686, 4074, 5529, 11058, 12901, 25802, 38703

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77387 and 77406. The biggest common factor number is the GCF number.
So the greatest common factor 77387 and 77406 is 19.

Also check out the Least Common Multiple of 77387 and 77406