What is the Greatest Common Factor of 972 and 988?
Greatest common factor (GCF) of 972 and 988 is 4.
GCF(972,988) = 4
We will now calculate the prime factors of 972 and 988, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 972 and 988.
How to find the GCF of 972 and 988?
We will first find the prime factorization of 972 and 988. After we will calculate the factors of 972 and 988 and find the biggest common factor number .
Step-1: Prime Factorization of 972
Prime factors of 972 are 2, 3. Prime factorization of 972 in exponential form is:
972 = 22 × 35
Step-2: Prime Factorization of 988
Prime factors of 988 are 2, 13, 19. Prime factorization of 988 in exponential form is:
988 = 22 × 131 × 191
Step-3: Factors of 972
List of positive integer factors of 972 that divides 972 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486
Step-4: Factors of 988
List of positive integer factors of 988 that divides 972 without a remainder.
1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 972 and 988. The biggest common factor number is the GCF number.
So the greatest common factor 972 and 988 is 4.
Also check out the Least Common Multiple of 972 and 988
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