What is the Greatest Common Factor of 85773 and 85785?

Greatest common factor (GCF) of 85773 and 85785 is 3.

GCF(85773,85785) = 3

We will now calculate the prime factors of 85773 and 85785, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85773 and 85785.

How to find the GCF of 85773 and 85785?

We will first find the prime factorization of 85773 and 85785. After we will calculate the factors of 85773 and 85785 and find the biggest common factor number .

Step-1: Prime Factorization of 85773

Prime factors of 85773 are 3, 28591. Prime factorization of 85773 in exponential form is:

85773 = 3¹ × 28591¹

Step-2: Prime Factorization of 85785

Prime factors of 85785 are 3, 5, 7, 19, 43. Prime factorization of 85785 in exponential form is:

85785 = 3¹ × 5¹ × 7¹ × 19¹ × 43¹

Step-3: Factors of 85773

List of positive integer factors of 85773 that divides 85773 without a remainder.

1, 3, 28591

Step-4: Factors of 85785

List of positive integer factors of 85785 that divides 85773 without a remainder.

1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 399, 645, 665, 817, 903, 1505, 1995, 2451, 4085, 4515, 5719, 12255, 17157, 28595

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85773 and 85785. The biggest common factor number is the GCF number.
So the greatest common factor 85773 and 85785 is 3.

Also check out the Least Common Multiple of 85773 and 85785