What is the Greatest Common Factor of 207 and 218?
Greatest common factor (GCF) of 207 and 218 is 1.
GCF(207,218) = 1
We will now calculate the prime factors of 207 and 218, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 207 and 218.
How to find the GCF of 207 and 218?
We will first find the prime factorization of 207 and 218. After we will calculate the factors of 207 and 218 and find the biggest common factor number .
Step-1: Prime Factorization of 207
Prime factors of 207 are 3, 23. Prime factorization of 207 in exponential form is:
207 = 32 × 231
Step-2: Prime Factorization of 218
Prime factors of 218 are 2, 109. Prime factorization of 218 in exponential form is:
218 = 21 × 1091
Step-3: Factors of 207
List of positive integer factors of 207 that divides 207 without a remainder.
1, 3, 9, 23, 69
Step-4: Factors of 218
List of positive integer factors of 218 that divides 207 without a remainder.
1, 2, 109
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 207 and 218. The biggest common factor number is the GCF number.
So the greatest common factor 207 and 218 is 1.
Also check out the Least Common Multiple of 207 and 218
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