What is the Greatest Common Factor of 71890 and 71909?

Greatest common factor (GCF) of 71890 and 71909 is 1.

GCF(71890,71909) = 1

We will now calculate the prime factors of 71890 and 71909, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71890 and 71909.

How to find the GCF of 71890 and 71909?

We will first find the prime factorization of 71890 and 71909. After we will calculate the factors of 71890 and 71909 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 71909

Prime factors of 71909 are 71909. Prime factorization of 71909 in exponential form is:

71909 = 71909¹

Step-3: Factors of 71890

List of positive integer factors of 71890 that divides 71890 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

Step-4: Factors of 71909

List of positive integer factors of 71909 that divides 71890 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71890 and 71909. The biggest common factor number is the GCF number.
So the greatest common factor 71890 and 71909 is 1.

Also check out the Least Common Multiple of 71890 and 71909