What is the Greatest Common Factor of 71885 and 71890?

Greatest common factor (GCF) of 71885 and 71890 is 5.

GCF(71885,71890) = 5

We will now calculate the prime factors of 71885 and 71890, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71885 and 71890.

How to find the GCF of 71885 and 71890?

We will first find the prime factorization of 71885 and 71890. After we will calculate the factors of 71885 and 71890 and find the biggest common factor number .

Step-1: Prime Factorization of 71885

Prime factors of 71885 are 5, 11, 1307. Prime factorization of 71885 in exponential form is:

71885 = 5¹ × 11¹ × 1307¹

Step-2: Prime Factorization of 71890

Prime factors of 71890 are 2, 5, 7, 13, 79. Prime factorization of 71890 in exponential form is:

71890 = 2¹ × 5¹ × 7¹ × 13¹ × 79¹

Step-3: Factors of 71885

List of positive integer factors of 71885 that divides 71885 without a remainder.

1, 5, 11, 55, 1307, 6535, 14377

Step-4: Factors of 71890

List of positive integer factors of 71890 that divides 71885 without a remainder.

1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 79, 91, 130, 158, 182, 395, 455, 553, 790, 910, 1027, 1106, 2054, 2765, 5135, 5530, 7189, 10270, 14378, 35945

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71885 and 71890. The biggest common factor number is the GCF number.
So the greatest common factor 71885 and 71890 is 5.

Also check out the Least Common Multiple of 71885 and 71890