What is the Greatest Common Factor of 61221 and 61225?

Greatest common factor (GCF) of 61221 and 61225 is 1.

GCF(61221,61225) = 1

We will now calculate the prime factors of 61221 and 61225, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61221 and 61225.

How to find the GCF of 61221 and 61225?

We will first find the prime factorization of 61221 and 61225. After we will calculate the factors of 61221 and 61225 and find the biggest common factor number .

Step-1: Prime Factorization of 61221

Prime factors of 61221 are 3, 20407. Prime factorization of 61221 in exponential form is:

61221 = 3¹ × 20407¹

Step-2: Prime Factorization of 61225

Prime factors of 61225 are 5, 31, 79. Prime factorization of 61225 in exponential form is:

61225 = 5² × 31¹ × 79¹

Step-3: Factors of 61221

List of positive integer factors of 61221 that divides 61221 without a remainder.

1, 3, 20407

Step-4: Factors of 61225

List of positive integer factors of 61225 that divides 61221 without a remainder.

1, 5, 25, 31, 79, 155, 395, 775, 1975, 2449, 12245

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61221 and 61225. The biggest common factor number is the GCF number.
So the greatest common factor 61221 and 61225 is 1.

Also check out the Least Common Multiple of 61221 and 61225