What is the Greatest Common Factor of 387 and 395?
Greatest common factor (GCF) of 387 and 395 is 1.
GCF(387,395) = 1
We will now calculate the prime factors of 387 and 395, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 387 and 395.
How to find the GCF of 387 and 395?
We will first find the prime factorization of 387 and 395. After we will calculate the factors of 387 and 395 and find the biggest common factor number .
Step-1: Prime Factorization of 387
Prime factors of 387 are 3, 43. Prime factorization of 387 in exponential form is:
387 = 32 × 431
Step-2: Prime Factorization of 395
Prime factors of 395 are 5, 79. Prime factorization of 395 in exponential form is:
395 = 51 × 791
Step-3: Factors of 387
List of positive integer factors of 387 that divides 387 without a remainder.
1, 3, 9, 43, 129
Step-4: Factors of 395
List of positive integer factors of 395 that divides 387 without a remainder.
1, 5, 79
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 387 and 395. The biggest common factor number is the GCF number.
So the greatest common factor 387 and 395 is 1.
Also check out the Least Common Multiple of 387 and 395
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