What is the Greatest Common Factor of 30940 and 30949?

Greatest common factor (GCF) of 30940 and 30949 is 1.

GCF(30940,30949) = 1

We will now calculate the prime factors of 30940 and 30949, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30940 and 30949.

How to find the GCF of 30940 and 30949?

We will first find the prime factorization of 30940 and 30949. After we will calculate the factors of 30940 and 30949 and find the biggest common factor number .

Step-1: Prime Factorization of 30940

Prime factors of 30940 are 2, 5, 7, 13, 17. Prime factorization of 30940 in exponential form is:

30940 = 2² × 5¹ × 7¹ × 13¹ × 17¹

Step-2: Prime Factorization of 30949

Prime factors of 30949 are 30949. Prime factorization of 30949 in exponential form is:

30949 = 30949¹

Step-3: Factors of 30940

List of positive integer factors of 30940 that divides 30940 without a remainder.

1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 170, 182, 221, 238, 260, 340, 364, 442, 455, 476, 595, 884, 910, 1105, 1190, 1547, 1820, 2210, 2380, 3094, 4420, 6188, 7735, 15470

Step-4: Factors of 30949

List of positive integer factors of 30949 that divides 30940 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30940 and 30949. The biggest common factor number is the GCF number.
So the greatest common factor 30940 and 30949 is 1.

Also check out the Least Common Multiple of 30940 and 30949