What is the Greatest Common Factor of 51285 and 51290?

Greatest common factor (GCF) of 51285 and 51290 is 5.

GCF(51285,51290) = 5

We will now calculate the prime factors of 51285 and 51290, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 51285 and 51290.

How to find the GCF of 51285 and 51290?

We will first find the prime factorization of 51285 and 51290. After we will calculate the factors of 51285 and 51290 and find the biggest common factor number .

Step-1: Prime Factorization of 51285

Prime factors of 51285 are 3, 5, 13, 263. Prime factorization of 51285 in exponential form is:

51285 = 3¹ × 5¹ × 13¹ × 263¹

Step-2: Prime Factorization of 51290

Prime factors of 51290 are 2, 5, 23, 223. Prime factorization of 51290 in exponential form is:

51290 = 2¹ × 5¹ × 23¹ × 223¹

Step-3: Factors of 51285

List of positive integer factors of 51285 that divides 51285 without a remainder.

1, 3, 5, 13, 15, 39, 65, 195, 263, 789, 1315, 3419, 3945, 10257, 17095

Step-4: Factors of 51290

List of positive integer factors of 51290 that divides 51285 without a remainder.

1, 2, 5, 10, 23, 46, 115, 223, 230, 446, 1115, 2230, 5129, 10258, 25645

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 51285 and 51290. The biggest common factor number is the GCF number.
So the greatest common factor 51285 and 51290 is 5.

Also check out the Least Common Multiple of 51285 and 51290