What is the Greatest Common Factor of 78141 and 78145?

Greatest common factor (GCF) of 78141 and 78145 is 1.

GCF(78141,78145) = 1

We will now calculate the prime factors of 78141 and 78145, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78141 and 78145.

How to find the GCF of 78141 and 78145?

We will first find the prime factorization of 78141 and 78145. After we will calculate the factors of 78141 and 78145 and find the biggest common factor number .

Step-1: Prime Factorization of 78141

Prime factors of 78141 are 3, 7, 61. Prime factorization of 78141 in exponential form is:

78141 = 3¹ × 7¹ × 61²

Step-2: Prime Factorization of 78145

Prime factors of 78145 are 5, 15629. Prime factorization of 78145 in exponential form is:

78145 = 5¹ × 15629¹

Step-3: Factors of 78141

List of positive integer factors of 78141 that divides 78141 without a remainder.

1, 3, 7, 21, 61, 183, 427, 1281, 3721, 11163, 26047

Step-4: Factors of 78145

List of positive integer factors of 78145 that divides 78141 without a remainder.

1, 5, 15629

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78141 and 78145. The biggest common factor number is the GCF number.
So the greatest common factor 78141 and 78145 is 1.

Also check out the Least Common Multiple of 78141 and 78145