What is the Greatest Common Factor of 643 and 652?
Greatest common factor (GCF) of 643 and 652 is 1.
GCF(643,652) = 1
We will now calculate the prime factors of 643 and 652, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 643 and 652.
How to find the GCF of 643 and 652?
We will first find the prime factorization of 643 and 652. After we will calculate the factors of 643 and 652 and find the biggest common factor number .
Step-1: Prime Factorization of 643
Prime factors of 643 are 643. Prime factorization of 643 in exponential form is:
643 = 6431
Step-2: Prime Factorization of 652
Prime factors of 652 are 2, 163. Prime factorization of 652 in exponential form is:
652 = 22 × 1631
Step-3: Factors of 643
List of positive integer factors of 643 that divides 643 without a remainder.
1
Step-4: Factors of 652
List of positive integer factors of 652 that divides 643 without a remainder.
1, 2, 4, 163, 326
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 643 and 652. The biggest common factor number is the GCF number.
So the greatest common factor 643 and 652 is 1.
Also check out the Least Common Multiple of 643 and 652
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