What is the Greatest Common Factor of 680 and 692?
Greatest common factor (GCF) of 680 and 692 is 4.
GCF(680,692) = 4
We will now calculate the prime factors of 680 and 692, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 680 and 692.
How to find the GCF of 680 and 692?
We will first find the prime factorization of 680 and 692. After we will calculate the factors of 680 and 692 and find the biggest common factor number .
Step-1: Prime Factorization of 680
Prime factors of 680 are 2, 5, 17. Prime factorization of 680 in exponential form is:
680 = 23 × 51 × 171
Step-2: Prime Factorization of 692
Prime factors of 692 are 2, 173. Prime factorization of 692 in exponential form is:
692 = 22 × 1731
Step-3: Factors of 680
List of positive integer factors of 680 that divides 680 without a remainder.
1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340
Step-4: Factors of 692
List of positive integer factors of 692 that divides 680 without a remainder.
1, 2, 4, 173, 346
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 680 and 692. The biggest common factor number is the GCF number.
So the greatest common factor 680 and 692 is 4.
Also check out the Least Common Multiple of 680 and 692
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