What is the Greatest Common Factor of 87285 and 87305?

Greatest common factor (GCF) of 87285 and 87305 is 5.

GCF(87285,87305) = 5

We will now calculate the prime factors of 87285 and 87305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87285 and 87305.

How to find the GCF of 87285 and 87305?

We will first find the prime factorization of 87285 and 87305. After we will calculate the factors of 87285 and 87305 and find the biggest common factor number .

Step-1: Prime Factorization of 87285

Prime factors of 87285 are 3, 5, 11, 23. Prime factorization of 87285 in exponential form is:

87285 = 3¹ × 5¹ × 11¹ × 23²

Step-2: Prime Factorization of 87305

Prime factors of 87305 are 5, 19, 919. Prime factorization of 87305 in exponential form is:

87305 = 5¹ × 19¹ × 919¹

Step-3: Factors of 87285

List of positive integer factors of 87285 that divides 87285 without a remainder.

1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 529, 759, 1265, 1587, 2645, 3795, 5819, 7935, 17457, 29095

Step-4: Factors of 87305

List of positive integer factors of 87305 that divides 87285 without a remainder.

1, 5, 19, 95, 919, 4595, 17461

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87285 and 87305. The biggest common factor number is the GCF number.
So the greatest common factor 87285 and 87305 is 5.

Also check out the Least Common Multiple of 87285 and 87305