What is the Greatest Common Factor of 67940 and 67949?

Greatest common factor (GCF) of 67940 and 67949 is 1.

GCF(67940,67949) = 1

We will now calculate the prime factors of 67940 and 67949, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67940 and 67949.

How to find the GCF of 67940 and 67949?

We will first find the prime factorization of 67940 and 67949. After we will calculate the factors of 67940 and 67949 and find the biggest common factor number .

Step-1: Prime Factorization of 67940

Prime factors of 67940 are 2, 5, 43, 79. Prime factorization of 67940 in exponential form is:

67940 = 2² × 5¹ × 43¹ × 79¹

Step-2: Prime Factorization of 67949

Prime factors of 67949 are 7, 17, 571. Prime factorization of 67949 in exponential form is:

67949 = 7¹ × 17¹ × 571¹

Step-3: Factors of 67940

List of positive integer factors of 67940 that divides 67940 without a remainder.

1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1580, 3397, 6794, 13588, 16985, 33970

Step-4: Factors of 67949

List of positive integer factors of 67949 that divides 67940 without a remainder.

1, 7, 17, 119, 571, 3997, 9707

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67940 and 67949. The biggest common factor number is the GCF number.
So the greatest common factor 67940 and 67949 is 1.

Also check out the Least Common Multiple of 67940 and 67949