What is the Greatest Common Factor of 785 and 800?
Greatest common factor (GCF) of 785 and 800 is 5.
GCF(785,800) = 5
We will now calculate the prime factors of 785 and 800, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 785 and 800.
How to find the GCF of 785 and 800?
We will first find the prime factorization of 785 and 800. After we will calculate the factors of 785 and 800 and find the biggest common factor number .
Step-1: Prime Factorization of 785
Prime factors of 785 are 5, 157. Prime factorization of 785 in exponential form is:
785 = 51 × 1571
Step-2: Prime Factorization of 800
Prime factors of 800 are 2, 5. Prime factorization of 800 in exponential form is:
800 = 25 × 52
Step-3: Factors of 785
List of positive integer factors of 785 that divides 785 without a remainder.
1, 5, 157
Step-4: Factors of 800
List of positive integer factors of 800 that divides 785 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 785 and 800. The biggest common factor number is the GCF number.
So the greatest common factor 785 and 800 is 5.
Also check out the Least Common Multiple of 785 and 800
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