What is the Greatest Common Factor of 47781 and 47789?

Greatest common factor (GCF) of 47781 and 47789 is 1.

GCF(47781,47789) = 1

We will now calculate the prime factors of 47781 and 47789, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 47781 and 47789.

How to find the GCF of 47781 and 47789?

We will first find the prime factorization of 47781 and 47789. After we will calculate the factors of 47781 and 47789 and find the biggest common factor number .

Step-1: Prime Factorization of 47781

Prime factors of 47781 are 3, 5309. Prime factorization of 47781 in exponential form is:

47781 = 3² × 5309¹

Step-2: Prime Factorization of 47789

Prime factors of 47789 are 7, 6827. Prime factorization of 47789 in exponential form is:

47789 = 7¹ × 6827¹

Step-3: Factors of 47781

List of positive integer factors of 47781 that divides 47781 without a remainder.

1, 3, 9, 5309, 15927

Step-4: Factors of 47789

List of positive integer factors of 47789 that divides 47781 without a remainder.

1, 7, 6827

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 47781 and 47789. The biggest common factor number is the GCF number.
So the greatest common factor 47781 and 47789 is 1.

Also check out the Least Common Multiple of 47781 and 47789