What is the Greatest Common Factor of 20340 and 20351?

Greatest common factor (GCF) of 20340 and 20351 is 1.

GCF(20340,20351) = 1

We will now calculate the prime factors of 20340 and 20351, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20340 and 20351.

How to find the GCF of 20340 and 20351?

We will first find the prime factorization of 20340 and 20351. After we will calculate the factors of 20340 and 20351 and find the biggest common factor number .

Step-1: Prime Factorization of 20340

Prime factors of 20340 are 2, 3, 5, 113. Prime factorization of 20340 in exponential form is:

20340 = 2² × 3² × 5¹ × 113¹

Step-2: Prime Factorization of 20351

Prime factors of 20351 are 47, 433. Prime factorization of 20351 in exponential form is:

20351 = 47¹ × 433¹

Step-3: Factors of 20340

List of positive integer factors of 20340 that divides 20340 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 226, 339, 452, 565, 678, 1017, 1130, 1356, 1695, 2034, 2260, 3390, 4068, 5085, 6780, 10170

Step-4: Factors of 20351

List of positive integer factors of 20351 that divides 20340 without a remainder.

1, 47, 433

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20340 and 20351. The biggest common factor number is the GCF number.
So the greatest common factor 20340 and 20351 is 1.

Also check out the Least Common Multiple of 20340 and 20351