What is the Greatest Common Factor of 25149 and 25155?

Greatest common factor (GCF) of 25149 and 25155 is 3.

GCF(25149,25155) = 3

We will now calculate the prime factors of 25149 and 25155, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25149 and 25155.

How to find the GCF of 25149 and 25155?

We will first find the prime factorization of 25149 and 25155. After we will calculate the factors of 25149 and 25155 and find the biggest common factor number .

Step-1: Prime Factorization of 25149

Prime factors of 25149 are 3, 83, 101. Prime factorization of 25149 in exponential form is:

25149 = 3¹ × 83¹ × 101¹

Step-2: Prime Factorization of 25155

Prime factors of 25155 are 3, 5, 13, 43. Prime factorization of 25155 in exponential form is:

25155 = 3² × 5¹ × 13¹ × 43¹

Step-3: Factors of 25149

List of positive integer factors of 25149 that divides 25149 without a remainder.

1, 3, 83, 101, 249, 303, 8383

Step-4: Factors of 25155

List of positive integer factors of 25155 that divides 25149 without a remainder.

1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 117, 129, 195, 215, 387, 559, 585, 645, 1677, 1935, 2795, 5031, 8385

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25149 and 25155. The biggest common factor number is the GCF number.
So the greatest common factor 25149 and 25155 is 3.

Also check out the Least Common Multiple of 25149 and 25155