What is the Greatest Common Factor of 393 and 397?
Greatest common factor (GCF) of 393 and 397 is 1.
GCF(393,397) = 1
We will now calculate the prime factors of 393 and 397, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 393 and 397.
How to find the GCF of 393 and 397?
We will first find the prime factorization of 393 and 397. After we will calculate the factors of 393 and 397 and find the biggest common factor number .
Step-1: Prime Factorization of 393
Prime factors of 393 are 3, 131. Prime factorization of 393 in exponential form is:
393 = 31 × 1311
Step-2: Prime Factorization of 397
Prime factors of 397 are 397. Prime factorization of 397 in exponential form is:
397 = 3971
Step-3: Factors of 393
List of positive integer factors of 393 that divides 393 without a remainder.
1, 3, 131
Step-4: Factors of 397
List of positive integer factors of 397 that divides 393 without a remainder.
1
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 393 and 397. The biggest common factor number is the GCF number.
So the greatest common factor 393 and 397 is 1.
Also check out the Least Common Multiple of 393 and 397
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