What is the Greatest Common Factor of 664 and 682?
Greatest common factor (GCF) of 664 and 682 is 2.
GCF(664,682) = 2
We will now calculate the prime factors of 664 and 682, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 664 and 682.
How to find the GCF of 664 and 682?
We will first find the prime factorization of 664 and 682. After we will calculate the factors of 664 and 682 and find the biggest common factor number .
Step-1: Prime Factorization of 664
Prime factors of 664 are 2, 83. Prime factorization of 664 in exponential form is:
664 = 23 × 831
Step-2: Prime Factorization of 682
Prime factors of 682 are 2, 11, 31. Prime factorization of 682 in exponential form is:
682 = 21 × 111 × 311
Step-3: Factors of 664
List of positive integer factors of 664 that divides 664 without a remainder.
1, 2, 4, 8, 83, 166, 332
Step-4: Factors of 682
List of positive integer factors of 682 that divides 664 without a remainder.
1, 2, 11, 22, 31, 62, 341
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 664 and 682. The biggest common factor number is the GCF number.
So the greatest common factor 664 and 682 is 2.
Also check out the Least Common Multiple of 664 and 682
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