What is the Greatest Common Factor of 25221 and 25230?

Greatest common factor (GCF) of 25221 and 25230 is 3.

GCF(25221,25230) = 3

We will now calculate the prime factors of 25221 and 25230, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25221 and 25230.

How to find the GCF of 25221 and 25230?

We will first find the prime factorization of 25221 and 25230. After we will calculate the factors of 25221 and 25230 and find the biggest common factor number .

Step-1: Prime Factorization of 25221

Prime factors of 25221 are 3, 7, 1201. Prime factorization of 25221 in exponential form is:

25221 = 3¹ × 7¹ × 1201¹

Step-2: Prime Factorization of 25230

Prime factors of 25230 are 2, 3, 5, 29. Prime factorization of 25230 in exponential form is:

25230 = 2¹ × 3¹ × 5¹ × 29²

Step-3: Factors of 25221

List of positive integer factors of 25221 that divides 25221 without a remainder.

1, 3, 7, 21, 1201, 3603, 8407

Step-4: Factors of 25230

List of positive integer factors of 25230 that divides 25221 without a remainder.

1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 841, 870, 1682, 2523, 4205, 5046, 8410, 12615

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25221 and 25230. The biggest common factor number is the GCF number.
So the greatest common factor 25221 and 25230 is 3.

Also check out the Least Common Multiple of 25221 and 25230