What is the Greatest Common Factor of 17628 and 17640?

Greatest common factor (GCF) of 17628 and 17640 is 12.

GCF(17628,17640) = 12

We will now calculate the prime factors of 17628 and 17640, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17628 and 17640.

How to find the GCF of 17628 and 17640?

We will first find the prime factorization of 17628 and 17640. After we will calculate the factors of 17628 and 17640 and find the biggest common factor number .

Step-1: Prime Factorization of 17628

Prime factors of 17628 are 2, 3, 13, 113. Prime factorization of 17628 in exponential form is:

17628 = 2² × 3¹ × 13¹ × 113¹

Step-2: Prime Factorization of 17640

Prime factors of 17640 are 2, 3, 5, 7. Prime factorization of 17640 in exponential form is:

17640 = 2³ × 3² × 5¹ × 7²

Step-3: Factors of 17628

List of positive integer factors of 17628 that divides 17628 without a remainder.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 113, 156, 226, 339, 452, 678, 1356, 1469, 2938, 4407, 5876, 8814

Step-4: Factors of 17640

List of positive integer factors of 17640 that divides 17628 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 4410, 5880, 8820

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17628 and 17640. The biggest common factor number is the GCF number.
So the greatest common factor 17628 and 17640 is 12.

Also check out the Least Common Multiple of 17628 and 17640