What is the Greatest Common Factor of 85956 and 85969?

Greatest common factor (GCF) of 85956 and 85969 is 13.

GCF(85956,85969) = 13

We will now calculate the prime factors of 85956 and 85969, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85956 and 85969.

How to find the GCF of 85956 and 85969?

We will first find the prime factorization of 85956 and 85969. After we will calculate the factors of 85956 and 85969 and find the biggest common factor number .

Step-1: Prime Factorization of 85956

Prime factors of 85956 are 2, 3, 13, 19, 29. Prime factorization of 85956 in exponential form is:

85956 = 2² × 3¹ × 13¹ × 19¹ × 29¹

Step-2: Prime Factorization of 85969

Prime factors of 85969 are 13, 17, 389. Prime factorization of 85969 in exponential form is:

85969 = 13¹ × 17¹ × 389¹

Step-3: Factors of 85956

List of positive integer factors of 85956 that divides 85956 without a remainder.

1, 2, 3, 4, 6, 12, 13, 19, 26, 29, 38, 39, 52, 57, 58, 76, 78, 87, 114, 116, 156, 174, 228, 247, 348, 377, 494, 551, 741, 754, 988, 1102, 1131, 1482, 1508, 1653, 2204, 2262, 2964, 3306, 4524, 6612, 7163, 14326, 21489, 28652, 42978

Step-4: Factors of 85969

List of positive integer factors of 85969 that divides 85956 without a remainder.

1, 13, 17, 221, 389, 5057, 6613

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85956 and 85969. The biggest common factor number is the GCF number.
So the greatest common factor 85956 and 85969 is 13.

Also check out the Least Common Multiple of 85956 and 85969