What is the Greatest Common Factor of 276 and 285?
Greatest common factor (GCF) of 276 and 285 is 3.
GCF(276,285) = 3
We will now calculate the prime factors of 276 and 285, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 276 and 285.
How to find the GCF of 276 and 285?
We will first find the prime factorization of 276 and 285. After we will calculate the factors of 276 and 285 and find the biggest common factor number .
Step-1: Prime Factorization of 276
Prime factors of 276 are 2, 3, 23. Prime factorization of 276 in exponential form is:
276 = 22 × 31 × 231
Step-2: Prime Factorization of 285
Prime factors of 285 are 3, 5, 19. Prime factorization of 285 in exponential form is:
285 = 31 × 51 × 191
Step-3: Factors of 276
List of positive integer factors of 276 that divides 276 without a remainder.
1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138
Step-4: Factors of 285
List of positive integer factors of 285 that divides 276 without a remainder.
1, 3, 5, 15, 19, 57, 95
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 276 and 285. The biggest common factor number is the GCF number.
So the greatest common factor 276 and 285 is 3.
Also check out the Least Common Multiple of 276 and 285
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