What is the Greatest Common Factor of 25480 and 25485?

Greatest common factor (GCF) of 25480 and 25485 is 5.

GCF(25480,25485) = 5

We will now calculate the prime factors of 25480 and 25485, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25480 and 25485.

How to find the GCF of 25480 and 25485?

We will first find the prime factorization of 25480 and 25485. After we will calculate the factors of 25480 and 25485 and find the biggest common factor number .

Step-1: Prime Factorization of 25480

Prime factors of 25480 are 2, 5, 7, 13. Prime factorization of 25480 in exponential form is:

25480 = 2³ × 5¹ × 7² × 13¹

Step-2: Prime Factorization of 25485

Prime factors of 25485 are 3, 5, 1699. Prime factorization of 25485 in exponential form is:

25485 = 3¹ × 5¹ × 1699¹

Step-3: Factors of 25480

List of positive integer factors of 25480 that divides 25480 without a remainder.

1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3185, 3640, 5096, 6370, 12740

Step-4: Factors of 25485

List of positive integer factors of 25485 that divides 25480 without a remainder.

1, 3, 5, 15, 1699, 5097, 8495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25480 and 25485. The biggest common factor number is the GCF number.
So the greatest common factor 25480 and 25485 is 5.

Also check out the Least Common Multiple of 25480 and 25485