What is the Greatest Common Factor of 77478 and 77485?

Greatest common factor (GCF) of 77478 and 77485 is 1.

GCF(77478,77485) = 1

We will now calculate the prime factors of 77478 and 77485, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77478 and 77485.

How to find the GCF of 77478 and 77485?

We will first find the prime factorization of 77478 and 77485. After we will calculate the factors of 77478 and 77485 and find the biggest common factor number .

Step-1: Prime Factorization of 77478

Prime factors of 77478 are 2, 3, 37, 349. Prime factorization of 77478 in exponential form is:

77478 = 2¹ × 3¹ × 37¹ × 349¹

Step-2: Prime Factorization of 77485

Prime factors of 77485 are 5, 15497. Prime factorization of 77485 in exponential form is:

77485 = 5¹ × 15497¹

Step-3: Factors of 77478

List of positive integer factors of 77478 that divides 77478 without a remainder.

1, 2, 3, 6, 37, 74, 111, 222, 349, 698, 1047, 2094, 12913, 25826, 38739

Step-4: Factors of 77485

List of positive integer factors of 77485 that divides 77478 without a remainder.

1, 5, 15497

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77478 and 77485. The biggest common factor number is the GCF number.
So the greatest common factor 77478 and 77485 is 1.

Also check out the Least Common Multiple of 77478 and 77485