What is the Greatest Common Factor of 13780 and 13787?

Greatest common factor (GCF) of 13780 and 13787 is 1.

GCF(13780,13787) = 1

We will now calculate the prime factors of 13780 and 13787, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13780 and 13787.

How to find the GCF of 13780 and 13787?

We will first find the prime factorization of 13780 and 13787. After we will calculate the factors of 13780 and 13787 and find the biggest common factor number .

Step-1: Prime Factorization of 13780

Prime factors of 13780 are 2, 5, 13, 53. Prime factorization of 13780 in exponential form is:

13780 = 2² × 5¹ × 13¹ × 53¹

Step-2: Prime Factorization of 13787

Prime factors of 13787 are 17, 811. Prime factorization of 13787 in exponential form is:

13787 = 17¹ × 811¹

Step-3: Factors of 13780

List of positive integer factors of 13780 that divides 13780 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890

Step-4: Factors of 13787

List of positive integer factors of 13787 that divides 13780 without a remainder.

1, 17, 811

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13780 and 13787. The biggest common factor number is the GCF number.
So the greatest common factor 13780 and 13787 is 1.

Also check out the Least Common Multiple of 13780 and 13787