What is the Greatest Common Factor of 17760 and 17780?

Greatest common factor (GCF) of 17760 and 17780 is 20.

GCF(17760,17780) = 20

We will now calculate the prime factors of 17760 and 17780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17760 and 17780.

How to find the GCF of 17760 and 17780?

We will first find the prime factorization of 17760 and 17780. After we will calculate the factors of 17760 and 17780 and find the biggest common factor number .

Step-1: Prime Factorization of 17760

Prime factors of 17760 are 2, 3, 5, 37. Prime factorization of 17760 in exponential form is:

17760 = 2⁵ × 3¹ × 5¹ × 37¹

Step-2: Prime Factorization of 17780

Prime factors of 17780 are 2, 5, 7, 127. Prime factorization of 17780 in exponential form is:

17780 = 2² × 5¹ × 7¹ × 127¹

Step-3: Factors of 17760

List of positive integer factors of 17760 that divides 17760 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 74, 80, 96, 111, 120, 148, 160, 185, 222, 240, 296, 370, 444, 480, 555, 592, 740, 888, 1110, 1184, 1480, 1776, 2220, 2960, 3552, 4440, 5920, 8880

Step-4: Factors of 17780

List of positive integer factors of 17780 that divides 17760 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 8890

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17760 and 17780. The biggest common factor number is the GCF number.
So the greatest common factor 17760 and 17780 is 20.

Also check out the Least Common Multiple of 17760 and 17780