What is the Greatest Common Factor of 12740 and 12749?

Greatest common factor (GCF) of 12740 and 12749 is 1.

GCF(12740,12749) = 1

We will now calculate the prime factors of 12740 and 12749, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12740 and 12749.

How to find the GCF of 12740 and 12749?

We will first find the prime factorization of 12740 and 12749. After we will calculate the factors of 12740 and 12749 and find the biggest common factor number .

Step-1: Prime Factorization of 12740

Prime factors of 12740 are 2, 5, 7, 13. Prime factorization of 12740 in exponential form is:

12740 = 2² × 5¹ × 7² × 13¹

Step-2: Prime Factorization of 12749

Prime factors of 12749 are 11, 19, 61. Prime factorization of 12749 in exponential form is:

12749 = 11¹ × 19¹ × 61¹

Step-3: Factors of 12740

List of positive integer factors of 12740 that divides 12740 without a remainder.

1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370

Step-4: Factors of 12749

List of positive integer factors of 12749 that divides 12740 without a remainder.

1, 11, 19, 61, 209, 671, 1159

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12740 and 12749. The biggest common factor number is the GCF number.
So the greatest common factor 12740 and 12749 is 1.

Also check out the Least Common Multiple of 12740 and 12749