What is the Greatest Common Factor of 71570 and 71578?

Greatest common factor (GCF) of 71570 and 71578 is 2.

GCF(71570,71578) = 2

We will now calculate the prime factors of 71570 and 71578, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71570 and 71578.

How to find the GCF of 71570 and 71578?

We will first find the prime factorization of 71570 and 71578. After we will calculate the factors of 71570 and 71578 and find the biggest common factor number .

Step-1: Prime Factorization of 71570

Prime factors of 71570 are 2, 5, 17, 421. Prime factorization of 71570 in exponential form is:

71570 = 2¹ × 5¹ × 17¹ × 421¹

Step-2: Prime Factorization of 71578

Prime factors of 71578 are 2, 13, 2753. Prime factorization of 71578 in exponential form is:

71578 = 2¹ × 13¹ × 2753¹

Step-3: Factors of 71570

List of positive integer factors of 71570 that divides 71570 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170, 421, 842, 2105, 4210, 7157, 14314, 35785

Step-4: Factors of 71578

List of positive integer factors of 71578 that divides 71570 without a remainder.

1, 2, 13, 26, 2753, 5506, 35789

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71570 and 71578. The biggest common factor number is the GCF number.
So the greatest common factor 71570 and 71578 is 2.

Also check out the Least Common Multiple of 71570 and 71578