What is the Greatest Common Factor of 63440 and 63455?

Greatest common factor (GCF) of 63440 and 63455 is 5.

GCF(63440,63455) = 5

We will now calculate the prime factors of 63440 and 63455, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63440 and 63455.

How to find the GCF of 63440 and 63455?

We will first find the prime factorization of 63440 and 63455. After we will calculate the factors of 63440 and 63455 and find the biggest common factor number .

Step-1: Prime Factorization of 63440

Prime factors of 63440 are 2, 5, 13, 61. Prime factorization of 63440 in exponential form is:

63440 = 2⁴ × 5¹ × 13¹ × 61¹

Step-2: Prime Factorization of 63455

Prime factors of 63455 are 5, 7, 37. Prime factorization of 63455 in exponential form is:

63455 = 5¹ × 7³ × 37¹

Step-3: Factors of 63440

List of positive integer factors of 63440 that divides 63440 without a remainder.

1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 2440, 3172, 3965, 4880, 6344, 7930, 12688, 15860, 31720

Step-4: Factors of 63455

List of positive integer factors of 63455 that divides 63440 without a remainder.

1, 5, 7, 35, 37, 49, 185, 245, 259, 343, 1295, 1715, 1813, 9065, 12691

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 63440 and 63455. The biggest common factor number is the GCF number.
So the greatest common factor 63440 and 63455 is 5.

Also check out the Least Common Multiple of 63440 and 63455