What is the Greatest Common Factor of 25542 and 25560?

Greatest common factor (GCF) of 25542 and 25560 is 18.

GCF(25542,25560) = 18

We will now calculate the prime factors of 25542 and 25560, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25542 and 25560.

How to find the GCF of 25542 and 25560?

We will first find the prime factorization of 25542 and 25560. After we will calculate the factors of 25542 and 25560 and find the biggest common factor number .

Step-1: Prime Factorization of 25542

Prime factors of 25542 are 2, 3, 11, 43. Prime factorization of 25542 in exponential form is:

25542 = 2¹ × 3³ × 11¹ × 43¹

Step-2: Prime Factorization of 25560

Prime factors of 25560 are 2, 3, 5, 71. Prime factorization of 25560 in exponential form is:

25560 = 2³ × 3² × 5¹ × 71¹

Step-3: Factors of 25542

List of positive integer factors of 25542 that divides 25542 without a remainder.

1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 43, 54, 66, 86, 99, 129, 198, 258, 297, 387, 473, 594, 774, 946, 1161, 1419, 2322, 2838, 4257, 8514, 12771

Step-4: Factors of 25560

List of positive integer factors of 25560 that divides 25542 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 852, 1065, 1278, 1420, 1704, 2130, 2556, 2840, 3195, 4260, 5112, 6390, 8520, 12780

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25542 and 25560. The biggest common factor number is the GCF number.
So the greatest common factor 25542 and 25560 is 18.

Also check out the Least Common Multiple of 25542 and 25560