What is the Greatest Common Factor of 61225 and 61242?

Greatest common factor (GCF) of 61225 and 61242 is 1.

GCF(61225,61242) = 1

We will now calculate the prime factors of 61225 and 61242, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61225 and 61242.

How to find the GCF of 61225 and 61242?

We will first find the prime factorization of 61225 and 61242. After we will calculate the factors of 61225 and 61242 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 61242

Prime factors of 61242 are 2, 3, 59, 173. Prime factorization of 61242 in exponential form is:

61242 = 2¹ × 3¹ × 59¹ × 173¹

Step-3: Factors of 61225

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

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

Step-4: Factors of 61242

List of positive integer factors of 61242 that divides 61225 without a remainder.

1, 2, 3, 6, 59, 118, 173, 177, 346, 354, 519, 1038, 10207, 20414, 30621

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61225 and 61242. The biggest common factor number is the GCF number.
So the greatest common factor 61225 and 61242 is 1.

Also check out the Least Common Multiple of 61225 and 61242