What is the Greatest Common Factor of 531 and 549?
Greatest common factor (GCF) of 531 and 549 is 9.
GCF(531,549) = 9
We will now calculate the prime factors of 531 and 549, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 531 and 549.
How to find the GCF of 531 and 549?
We will first find the prime factorization of 531 and 549. After we will calculate the factors of 531 and 549 and find the biggest common factor number .
Step-1: Prime Factorization of 531
Prime factors of 531 are 3, 59. Prime factorization of 531 in exponential form is:
531 = 32 × 591
Step-2: Prime Factorization of 549
Prime factors of 549 are 3, 61. Prime factorization of 549 in exponential form is:
549 = 32 × 611
Step-3: Factors of 531
List of positive integer factors of 531 that divides 531 without a remainder.
1, 3, 9, 59, 177
Step-4: Factors of 549
List of positive integer factors of 549 that divides 531 without a remainder.
1, 3, 9, 61, 183
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 531 and 549. The biggest common factor number is the GCF number.
So the greatest common factor 531 and 549 is 9.
Also check out the Least Common Multiple of 531 and 549
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