What is the Greatest Common Factor of 71128 and 71145?

Greatest common factor (GCF) of 71128 and 71145 is 17.

GCF(71128,71145) = 17

We will now calculate the prime factors of 71128 and 71145, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71128 and 71145.

How to find the GCF of 71128 and 71145?

We will first find the prime factorization of 71128 and 71145. After we will calculate the factors of 71128 and 71145 and find the biggest common factor number .

Step-1: Prime Factorization of 71128

Prime factors of 71128 are 2, 17, 523. Prime factorization of 71128 in exponential form is:

71128 = 2³ × 17¹ × 523¹

Step-2: Prime Factorization of 71145

Prime factors of 71145 are 3, 5, 17, 31. Prime factorization of 71145 in exponential form is:

71145 = 3³ × 5¹ × 17¹ × 31¹

Step-3: Factors of 71128

List of positive integer factors of 71128 that divides 71128 without a remainder.

1, 2, 4, 8, 17, 34, 68, 136, 523, 1046, 2092, 4184, 8891, 17782, 35564

Step-4: Factors of 71145

List of positive integer factors of 71145 that divides 71128 without a remainder.

1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 85, 93, 135, 153, 155, 255, 279, 459, 465, 527, 765, 837, 1395, 1581, 2295, 2635, 4185, 4743, 7905, 14229, 23715

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71128 and 71145. The biggest common factor number is the GCF number.
So the greatest common factor 71128 and 71145 is 17.

Also check out the Least Common Multiple of 71128 and 71145