What is the Greatest Common Factor of 798 and 810?
Greatest common factor (GCF) of 798 and 810 is 6.
GCF(798,810) = 6
We will now calculate the prime factors of 798 and 810, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 798 and 810.
How to find the GCF of 798 and 810?
We will first find the prime factorization of 798 and 810. After we will calculate the factors of 798 and 810 and find the biggest common factor number .
Step-1: Prime Factorization of 798
Prime factors of 798 are 2, 3, 7, 19. Prime factorization of 798 in exponential form is:
798 = 21 × 31 × 71 × 191
Step-2: Prime Factorization of 810
Prime factors of 810 are 2, 3, 5. Prime factorization of 810 in exponential form is:
810 = 21 × 34 × 51
Step-3: Factors of 798
List of positive integer factors of 798 that divides 798 without a remainder.
1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399
Step-4: Factors of 810
List of positive integer factors of 810 that divides 798 without a remainder.
1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 798 and 810. The biggest common factor number is the GCF number.
So the greatest common factor 798 and 810 is 6.
Also check out the Least Common Multiple of 798 and 810
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