What is the Greatest Common Factor of 16660 and 16680?

Greatest common factor (GCF) of 16660 and 16680 is 20.

GCF(16660,16680) = 20

We will now calculate the prime factors of 16660 and 16680, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16660 and 16680.

How to find the GCF of 16660 and 16680?

We will first find the prime factorization of 16660 and 16680. After we will calculate the factors of 16660 and 16680 and find the biggest common factor number .

Step-1: Prime Factorization of 16660

Prime factors of 16660 are 2, 5, 7, 17. Prime factorization of 16660 in exponential form is:

16660 = 2² × 5¹ × 7² × 17¹

Step-2: Prime Factorization of 16680

Prime factors of 16680 are 2, 3, 5, 139. Prime factorization of 16680 in exponential form is:

16680 = 2³ × 3¹ × 5¹ × 139¹

Step-3: Factors of 16660

List of positive integer factors of 16660 that divides 16660 without a remainder.

1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 8330

Step-4: Factors of 16680

List of positive integer factors of 16680 that divides 16660 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2780, 3336, 4170, 5560, 8340

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16660 and 16680. The biggest common factor number is the GCF number.
So the greatest common factor 16660 and 16680 is 20.

Also check out the Least Common Multiple of 16660 and 16680