What is the Greatest Common Factor of 87780 and 87788?

Greatest common factor (GCF) of 87780 and 87788 is 4.

GCF(87780,87788) = 4

We will now calculate the prime factors of 87780 and 87788, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87780 and 87788.

How to find the GCF of 87780 and 87788?

We will first find the prime factorization of 87780 and 87788. After we will calculate the factors of 87780 and 87788 and find the biggest common factor number .

Step-1: Prime Factorization of 87780

Prime factors of 87780 are 2, 3, 5, 7, 11, 19. Prime factorization of 87780 in exponential form is:

87780 = 2² × 3¹ × 5¹ × 7¹ × 11¹ × 19¹

Step-2: Prime Factorization of 87788

Prime factors of 87788 are 2, 17, 1291. Prime factorization of 87788 in exponential form is:

87788 = 2² × 17¹ × 1291¹

Step-3: Factors of 87780

List of positive integer factors of 87780 that divides 87780 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 19, 20, 21, 22, 28, 30, 33, 35, 38, 42, 44, 55, 57, 60, 66, 70, 76, 77, 84, 95, 105, 110, 114, 132, 133, 140, 154, 165, 190, 209, 210, 220, 228, 231, 266, 285, 308, 330, 380, 385, 399, 418, 420, 462, 532, 570, 627, 660, 665, 770, 798, 836, 924, 1045, 1140, 1155, 1254, 1330, 1463, 1540, 1596, 1995, 2090, 2310, 2508, 2660, 2926, 3135, 3990, 4180, 4389, 4620, 5852, 6270, 7315, 7980, 8778, 12540, 14630, 17556, 21945, 29260, 43890

Step-4: Factors of 87788

List of positive integer factors of 87788 that divides 87780 without a remainder.

1, 2, 4, 17, 34, 68, 1291, 2582, 5164, 21947, 43894

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87780 and 87788. The biggest common factor number is the GCF number.
So the greatest common factor 87780 and 87788 is 4.

Also check out the Least Common Multiple of 87780 and 87788