What is the Greatest Common Factor of 581 and 585?
Greatest common factor (GCF) of 581 and 585 is 1.
GCF(581,585) = 1
We will now calculate the prime factors of 581 and 585, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 581 and 585.
How to find the GCF of 581 and 585?
We will first find the prime factorization of 581 and 585. After we will calculate the factors of 581 and 585 and find the biggest common factor number .
Step-1: Prime Factorization of 581
Prime factors of 581 are 7, 83. Prime factorization of 581 in exponential form is:
581 = 71 × 831
Step-2: Prime Factorization of 585
Prime factors of 585 are 3, 5, 13. Prime factorization of 585 in exponential form is:
585 = 32 × 51 × 131
Step-3: Factors of 581
List of positive integer factors of 581 that divides 581 without a remainder.
1, 7, 83
Step-4: Factors of 585
List of positive integer factors of 585 that divides 581 without a remainder.
1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 581 and 585. The biggest common factor number is the GCF number.
So the greatest common factor 581 and 585 is 1.
Also check out the Least Common Multiple of 581 and 585
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