What is the Greatest Common Factor of 810 and 830?
Greatest common factor (GCF) of 810 and 830 is 10.
GCF(810,830) = 10
We will now calculate the prime factors of 810 and 830, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 810 and 830.
How to find the GCF of 810 and 830?
We will first find the prime factorization of 810 and 830. After we will calculate the factors of 810 and 830 and find the biggest common factor number .
Step-1: 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-2: Prime Factorization of 830
Prime factors of 830 are 2, 5, 83. Prime factorization of 830 in exponential form is:
830 = 21 × 51 × 831
Step-3: Factors of 810
List of positive integer factors of 810 that divides 810 without a remainder.
1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405
Step-4: Factors of 830
List of positive integer factors of 830 that divides 810 without a remainder.
1, 2, 5, 10, 83, 166, 415
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 810 and 830. The biggest common factor number is the GCF number.
So the greatest common factor 810 and 830 is 10.
Also check out the Least Common Multiple of 810 and 830
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