What is the Greatest Common Factor of 549 and 555?
Greatest common factor (GCF) of 549 and 555 is 3.
GCF(549,555) = 3
We will now calculate the prime factors of 549 and 555, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 549 and 555.
How to find the GCF of 549 and 555?
We will first find the prime factorization of 549 and 555. After we will calculate the factors of 549 and 555 and find the biggest common factor number .
Step-1: Prime Factorization of 549
Prime factors of 549 are 3, 61. Prime factorization of 549 in exponential form is:
549 = 32 × 611
Step-2: Prime Factorization of 555
Prime factors of 555 are 3, 5, 37. Prime factorization of 555 in exponential form is:
555 = 31 × 51 × 371
Step-3: Factors of 549
List of positive integer factors of 549 that divides 549 without a remainder.
1, 3, 9, 61, 183
Step-4: Factors of 555
List of positive integer factors of 555 that divides 549 without a remainder.
1, 3, 5, 15, 37, 111, 185
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 549 and 555. The biggest common factor number is the GCF number.
So the greatest common factor 549 and 555 is 3.
Also check out the Least Common Multiple of 549 and 555
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