What is the Greatest Common Factor of 9947 and 9956?

Greatest common factor (GCF) of 9947 and 9956 is 1.

GCF(9947,9956) = 1

We will now calculate the prime factors of 9947 and 9956, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9947 and 9956.

How to find the GCF of 9947 and 9956?

We will first find the prime factorization of 9947 and 9956. After we will calculate the factors of 9947 and 9956 and find the biggest common factor number .

Step-1: Prime Factorization of 9947

Prime factors of 9947 are 7, 29. Prime factorization of 9947 in exponential form is:

9947 = 7³ × 29¹

Step-2: Prime Factorization of 9956

Prime factors of 9956 are 2, 19, 131. Prime factorization of 9956 in exponential form is:

9956 = 2² × 19¹ × 131¹

Step-3: Factors of 9947

List of positive integer factors of 9947 that divides 9947 without a remainder.

1, 7, 29, 49, 203, 343, 1421

Step-4: Factors of 9956

List of positive integer factors of 9956 that divides 9947 without a remainder.

1, 2, 4, 19, 38, 76, 131, 262, 524, 2489, 4978

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9947 and 9956. The biggest common factor number is the GCF number.
So the greatest common factor 9947 and 9956 is 1.

Also check out the Least Common Multiple of 9947 and 9956