What is the Greatest Common Factor of 252 and 270?
Greatest common factor (GCF) of 252 and 270 is 18.
GCF(252,270) = 18
We will now calculate the prime factors of 252 and 270, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 252 and 270.
How to find the GCF of 252 and 270?
We will first find the prime factorization of 252 and 270. After we will calculate the factors of 252 and 270 and find the biggest common factor number .
Step-1: Prime Factorization of 252
Prime factors of 252 are 2, 3, 7. Prime factorization of 252 in exponential form is:
252 = 22 × 32 × 71
Step-2: Prime Factorization of 270
Prime factors of 270 are 2, 3, 5. Prime factorization of 270 in exponential form is:
270 = 21 × 33 × 51
Step-3: Factors of 252
List of positive integer factors of 252 that divides 252 without a remainder.
1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126
Step-4: Factors of 270
List of positive integer factors of 270 that divides 252 without a remainder.
1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 252 and 270. The biggest common factor number is the GCF number.
So the greatest common factor 252 and 270 is 18.
Also check out the Least Common Multiple of 252 and 270
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