What is the Greatest Common Factor of 767 and 780?
Greatest common factor (GCF) of 767 and 780 is 13.
GCF(767,780) = 13
We will now calculate the prime factors of 767 and 780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 767 and 780.
How to find the GCF of 767 and 780?
We will first find the prime factorization of 767 and 780. After we will calculate the factors of 767 and 780 and find the biggest common factor number .
Step-1: Prime Factorization of 767
Prime factors of 767 are 13, 59. Prime factorization of 767 in exponential form is:
767 = 131 × 591
Step-2: Prime Factorization of 780
Prime factors of 780 are 2, 3, 5, 13. Prime factorization of 780 in exponential form is:
780 = 22 × 31 × 51 × 131
Step-3: Factors of 767
List of positive integer factors of 767 that divides 767 without a remainder.
1, 13, 59
Step-4: Factors of 780
List of positive integer factors of 780 that divides 767 without a remainder.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 767 and 780. The biggest common factor number is the GCF number.
So the greatest common factor 767 and 780 is 13.
Also check out the Least Common Multiple of 767 and 780
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