What is the Greatest Common Factor of 65780 and 65800?

Greatest common factor (GCF) of 65780 and 65800 is 20.

GCF(65780,65800) = 20

We will now calculate the prime factors of 65780 and 65800, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65780 and 65800.

How to find the GCF of 65780 and 65800?

We will first find the prime factorization of 65780 and 65800. After we will calculate the factors of 65780 and 65800 and find the biggest common factor number .

Step-1: Prime Factorization of 65780

Prime factors of 65780 are 2, 5, 11, 13, 23. Prime factorization of 65780 in exponential form is:

65780 = 2² × 5¹ × 11¹ × 13¹ × 23¹

Step-2: Prime Factorization of 65800

Prime factors of 65800 are 2, 5, 7, 47. Prime factorization of 65800 in exponential form is:

65800 = 2³ × 5² × 7¹ × 47¹

Step-3: Factors of 65780

List of positive integer factors of 65780 that divides 65780 without a remainder.

1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 26, 44, 46, 52, 55, 65, 92, 110, 115, 130, 143, 220, 230, 253, 260, 286, 299, 460, 506, 572, 598, 715, 1012, 1196, 1265, 1430, 1495, 2530, 2860, 2990, 3289, 5060, 5980, 6578, 13156, 16445, 32890

Step-4: Factors of 65800

List of positive integer factors of 65800 that divides 65780 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 47, 50, 56, 70, 94, 100, 140, 175, 188, 200, 235, 280, 329, 350, 376, 470, 658, 700, 940, 1175, 1316, 1400, 1645, 1880, 2350, 2632, 3290, 4700, 6580, 8225, 9400, 13160, 16450, 32900

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65780 and 65800. The biggest common factor number is the GCF number.
So the greatest common factor 65780 and 65800 is 20.

Also check out the Least Common Multiple of 65780 and 65800