What is the Greatest Common Factor of 66690 and 66699?

Greatest common factor (GCF) of 66690 and 66699 is 9.

GCF(66690,66699) = 9

We will now calculate the prime factors of 66690 and 66699, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66690 and 66699.

How to find the GCF of 66690 and 66699?

We will first find the prime factorization of 66690 and 66699. After we will calculate the factors of 66690 and 66699 and find the biggest common factor number .

Step-1: Prime Factorization of 66690

Prime factors of 66690 are 2, 3, 5, 13, 19. Prime factorization of 66690 in exponential form is:

66690 = 2¹ × 3³ × 5¹ × 13¹ × 19¹

Step-2: Prime Factorization of 66699

Prime factors of 66699 are 3, 7411. Prime factorization of 66699 in exponential form is:

66699 = 3² × 7411¹

Step-3: Factors of 66690

List of positive integer factors of 66690 that divides 66690 without a remainder.

1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 27, 30, 38, 39, 45, 54, 57, 65, 78, 90, 95, 114, 117, 130, 135, 171, 190, 195, 234, 247, 270, 285, 342, 351, 390, 494, 513, 570, 585, 702, 741, 855, 1026, 1170, 1235, 1482, 1710, 1755, 2223, 2470, 2565, 3510, 3705, 4446, 5130, 6669, 7410, 11115, 13338, 22230, 33345

Step-4: Factors of 66699

List of positive integer factors of 66699 that divides 66690 without a remainder.

1, 3, 9, 7411, 22233

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66690 and 66699. The biggest common factor number is the GCF number.
So the greatest common factor 66690 and 66699 is 9.

Also check out the Least Common Multiple of 66690 and 66699