What is the Greatest Common Factor of 67671 and 67680?

Greatest common factor (GCF) of 67671 and 67680 is 9.

GCF(67671,67680) = 9

We will now calculate the prime factors of 67671 and 67680, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67671 and 67680.

How to find the GCF of 67671 and 67680?

We will first find the prime factorization of 67671 and 67680. After we will calculate the factors of 67671 and 67680 and find the biggest common factor number .

Step-1: Prime Factorization of 67671

Prime factors of 67671 are 3, 73, 103. Prime factorization of 67671 in exponential form is:

67671 = 3² × 73¹ × 103¹

Step-2: Prime Factorization of 67680

Prime factors of 67680 are 2, 3, 5, 47. Prime factorization of 67680 in exponential form is:

67680 = 2⁵ × 3² × 5¹ × 47¹

Step-3: Factors of 67671

List of positive integer factors of 67671 that divides 67671 without a remainder.

1, 3, 9, 73, 103, 219, 309, 657, 927, 7519, 22557

Step-4: Factors of 67680

List of positive integer factors of 67680 that divides 67671 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 96, 120, 141, 144, 160, 180, 188, 235, 240, 282, 288, 360, 376, 423, 470, 480, 564, 705, 720, 752, 846, 940, 1128, 1410, 1440, 1504, 1692, 1880, 2115, 2256, 2820, 3384, 3760, 4230, 4512, 5640, 6768, 7520, 8460, 11280, 13536, 16920, 22560, 33840

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67671 and 67680. The biggest common factor number is the GCF number.
So the greatest common factor 67671 and 67680 is 9.

Also check out the Least Common Multiple of 67671 and 67680