What is the Greatest Common Factor of 69540 and 69555?

Greatest common factor (GCF) of 69540 and 69555 is 15.

GCF(69540,69555) = 15

We will now calculate the prime factors of 69540 and 69555, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 69540 and 69555.

How to find the GCF of 69540 and 69555?

We will first find the prime factorization of 69540 and 69555. After we will calculate the factors of 69540 and 69555 and find the biggest common factor number .

Step-1: Prime Factorization of 69540

Prime factors of 69540 are 2, 3, 5, 19, 61. Prime factorization of 69540 in exponential form is:

69540 = 2² × 3¹ × 5¹ × 19¹ × 61¹

Step-2: Prime Factorization of 69555

Prime factors of 69555 are 3, 5, 4637. Prime factorization of 69555 in exponential form is:

69555 = 3¹ × 5¹ × 4637¹

Step-3: Factors of 69540

List of positive integer factors of 69540 that divides 69540 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 61, 76, 95, 114, 122, 183, 190, 228, 244, 285, 305, 366, 380, 570, 610, 732, 915, 1140, 1159, 1220, 1830, 2318, 3477, 3660, 4636, 5795, 6954, 11590, 13908, 17385, 23180, 34770

Step-4: Factors of 69555

List of positive integer factors of 69555 that divides 69540 without a remainder.

1, 3, 5, 15, 4637, 13911, 23185

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 69540 and 69555. The biggest common factor number is the GCF number.
So the greatest common factor 69540 and 69555 is 15.

Also check out the Least Common Multiple of 69540 and 69555