What is the Greatest Common Factor of 803 and 819?
Greatest common factor (GCF) of 803 and 819 is 1.
GCF(803,819) = 1
We will now calculate the prime factors of 803 and 819, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 803 and 819.
How to find the GCF of 803 and 819?
We will first find the prime factorization of 803 and 819. After we will calculate the factors of 803 and 819 and find the biggest common factor number .
Step-1: Prime Factorization of 803
Prime factors of 803 are 11, 73. Prime factorization of 803 in exponential form is:
803 = 111 × 731
Step-2: Prime Factorization of 819
Prime factors of 819 are 3, 7, 13. Prime factorization of 819 in exponential form is:
819 = 32 × 71 × 131
Step-3: Factors of 803
List of positive integer factors of 803 that divides 803 without a remainder.
1, 11, 73
Step-4: Factors of 819
List of positive integer factors of 819 that divides 803 without a remainder.
1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 803 and 819. The biggest common factor number is the GCF number.
So the greatest common factor 803 and 819 is 1.
Also check out the Least Common Multiple of 803 and 819
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