GCF and LCM Calculator Logo

What is the Greatest Common Factor of 25785 and 25797?

Greatest common factor (GCF) of 25785 and 25797 is 3.

GCF(25785,25797) = 3

We will now calculate the prime factors of 25785 and 25797, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25785 and 25797.

GCF Calculator and
and

How to find the GCF of 25785 and 25797?

We will first find the prime factorization of 25785 and 25797. After we will calculate the factors of 25785 and 25797 and find the biggest common factor number .

Step-1: Prime Factorization of 25785

Prime factors of 25785 are 3, 5, 191. Prime factorization of 25785 in exponential form is:

25785 = 33 × 51 × 1911

Step-2: Prime Factorization of 25797

Prime factors of 25797 are 3, 8599. Prime factorization of 25797 in exponential form is:

25797 = 31 × 85991

Step-3: Factors of 25785

List of positive integer factors of 25785 that divides 25785 without a remainder.

1, 3, 5, 9, 15, 27, 45, 135, 191, 573, 955, 1719, 2865, 5157, 8595

Step-4: Factors of 25797

List of positive integer factors of 25797 that divides 25785 without a remainder.

1, 3, 8599

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25785 and 25797. The biggest common factor number is the GCF number.
So the greatest common factor 25785 and 25797 is 3.

Also check out the Least Common Multiple of 25785 and 25797