What is the Greatest Common Factor of 77965 and 77970?
Greatest common factor (GCF) of 77965 and 77970 is 5.
GCF(77965,77970) = 5
We will now calculate the prime factors of 77965 and 77970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77965 and 77970.
How to find the GCF of 77965 and 77970?
We will first find the prime factorization of 77965 and 77970. After we will calculate the factors of 77965 and 77970 and find the biggest common factor number .
Step-1: Prime Factorization of 77965
Prime factors of 77965 are 5, 31, 503. Prime factorization of 77965 in exponential form is:
77965 = 51 × 311 × 5031
Step-2: Prime Factorization of 77970
Prime factors of 77970 are 2, 3, 5, 23, 113. Prime factorization of 77970 in exponential form is:
77970 = 21 × 31 × 51 × 231 × 1131
Step-3: Factors of 77965
List of positive integer factors of 77965 that divides 77965 without a remainder.
1, 5, 31, 155, 503, 2515, 15593
Step-4: Factors of 77970
List of positive integer factors of 77970 that divides 77965 without a remainder.
1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 113, 115, 138, 226, 230, 339, 345, 565, 678, 690, 1130, 1695, 2599, 3390, 5198, 7797, 12995, 15594, 25990, 38985
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 77965 and 77970. The biggest common factor number is the GCF number.
So the greatest common factor 77965 and 77970 is 5.
Also check out the Least Common Multiple of 77965 and 77970
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