What is the Greatest Common Factor of 25770 and 25780?

Greatest common factor (GCF) of 25770 and 25780 is 10.

GCF(25770,25780) = 10

We will now calculate the prime factors of 25770 and 25780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25770 and 25780.

How to find the GCF of 25770 and 25780?

We will first find the prime factorization of 25770 and 25780. After we will calculate the factors of 25770 and 25780 and find the biggest common factor number .

Step-1: Prime Factorization of 25770

Prime factors of 25770 are 2, 3, 5, 859. Prime factorization of 25770 in exponential form is:

25770 = 2¹ × 3¹ × 5¹ × 859¹

Step-2: Prime Factorization of 25780

Prime factors of 25780 are 2, 5, 1289. Prime factorization of 25780 in exponential form is:

25780 = 2² × 5¹ × 1289¹

Step-3: Factors of 25770

List of positive integer factors of 25770 that divides 25770 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 859, 1718, 2577, 4295, 5154, 8590, 12885

Step-4: Factors of 25780

List of positive integer factors of 25780 that divides 25770 without a remainder.

1, 2, 4, 5, 10, 20, 1289, 2578, 5156, 6445, 12890

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25770 and 25780. The biggest common factor number is the GCF number.
So the greatest common factor 25770 and 25780 is 10.

Also check out the Least Common Multiple of 25770 and 25780