What is the Greatest Common Factor of 32705 and 32720?

Greatest common factor (GCF) of 32705 and 32720 is 5.

GCF(32705,32720) = 5

We will now calculate the prime factors of 32705 and 32720, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 32705 and 32720.

How to find the GCF of 32705 and 32720?

We will first find the prime factorization of 32705 and 32720. After we will calculate the factors of 32705 and 32720 and find the biggest common factor number .

Step-1: Prime Factorization of 32705

Prime factors of 32705 are 5, 31, 211. Prime factorization of 32705 in exponential form is:

32705 = 5¹ × 31¹ × 211¹

Step-2: Prime Factorization of 32720

Prime factors of 32720 are 2, 5, 409. Prime factorization of 32720 in exponential form is:

32720 = 2⁴ × 5¹ × 409¹

Step-3: Factors of 32705

List of positive integer factors of 32705 that divides 32705 without a remainder.

1, 5, 31, 155, 211, 1055, 6541

Step-4: Factors of 32720

List of positive integer factors of 32720 that divides 32705 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 16360

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 32705 and 32720. The biggest common factor number is the GCF number.
So the greatest common factor 32705 and 32720 is 5.

Also check out the Least Common Multiple of 32705 and 32720