What is the Greatest Common Factor of 77964 and 77978?
Greatest common factor (GCF) of 77964 and 77978 is 2.
GCF(77964,77978) = 2
We will now calculate the prime factors of 77964 and 77978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77964 and 77978.
How to find the GCF of 77964 and 77978?
We will first find the prime factorization of 77964 and 77978. After we will calculate the factors of 77964 and 77978 and find the biggest common factor number .
Step-1: Prime Factorization of 77964
Prime factors of 77964 are 2, 3, 73, 89. Prime factorization of 77964 in exponential form is:
77964 = 22 × 31 × 731 × 891
Step-2: Prime Factorization of 77978
Prime factors of 77978 are 2, 127, 307. Prime factorization of 77978 in exponential form is:
77978 = 21 × 1271 × 3071
Step-3: Factors of 77964
List of positive integer factors of 77964 that divides 77964 without a remainder.
1, 2, 3, 4, 6, 12, 73, 89, 146, 178, 219, 267, 292, 356, 438, 534, 876, 1068, 6497, 12994, 19491, 25988, 38982
Step-4: Factors of 77978
List of positive integer factors of 77978 that divides 77964 without a remainder.
1, 2, 127, 254, 307, 614, 38989
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 77964 and 77978. The biggest common factor number is the GCF number.
So the greatest common factor 77964 and 77978 is 2.
Also check out the Least Common Multiple of 77964 and 77978
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