What is the Greatest Common Factor of 981 and 1001?
Greatest common factor (GCF) of 981 and 1001 is 1.
GCF(981,1001) = 1
We will now calculate the prime factors of 981 and 1001, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 981 and 1001.
How to find the GCF of 981 and 1001?
We will first find the prime factorization of 981 and 1001. After we will calculate the factors of 981 and 1001 and find the biggest common factor number .
Step-1: Prime Factorization of 981
Prime factors of 981 are 3, 109. Prime factorization of 981 in exponential form is:
981 = 32 × 1091
Step-2: Prime Factorization of 1001
Prime factors of 1001 are 7, 11, 13. Prime factorization of 1001 in exponential form is:
1001 = 71 × 111 × 131
Step-3: Factors of 981
List of positive integer factors of 981 that divides 981 without a remainder.
1, 3, 9, 109, 327
Step-4: Factors of 1001
List of positive integer factors of 1001 that divides 981 without a remainder.
1, 7, 11, 13, 77, 91, 143
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 981 and 1001. The biggest common factor number is the GCF number.
So the greatest common factor 981 and 1001 is 1.
Also check out the Least Common Multiple of 981 and 1001
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