What is the Greatest Common Factor of 68315 and 68320?

Greatest common factor (GCF) of 68315 and 68320 is 5.

GCF(68315,68320) = 5

We will now calculate the prime factors of 68315 and 68320, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68315 and 68320.

How to find the GCF of 68315 and 68320?

We will first find the prime factorization of 68315 and 68320. After we will calculate the factors of 68315 and 68320 and find the biggest common factor number .

Step-1: Prime Factorization of 68315

Prime factors of 68315 are 5, 13, 1051. Prime factorization of 68315 in exponential form is:

68315 = 5¹ × 13¹ × 1051¹

Step-2: Prime Factorization of 68320

Prime factors of 68320 are 2, 5, 7, 61. Prime factorization of 68320 in exponential form is:

68320 = 2⁵ × 5¹ × 7¹ × 61¹

Step-3: Factors of 68315

List of positive integer factors of 68315 that divides 68315 without a remainder.

1, 5, 13, 65, 1051, 5255, 13663

Step-4: Factors of 68320

List of positive integer factors of 68320 that divides 68315 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1120, 1220, 1708, 1952, 2135, 2440, 3416, 4270, 4880, 6832, 8540, 9760, 13664, 17080, 34160

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68315 and 68320. The biggest common factor number is the GCF number.
So the greatest common factor 68315 and 68320 is 5.

Also check out the Least Common Multiple of 68315 and 68320