What is the Greatest Common Factor of 39221 and 39240?

Greatest common factor (GCF) of 39221 and 39240 is 1.

GCF(39221,39240) = 1

We will now calculate the prime factors of 39221 and 39240, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39221 and 39240.

How to find the GCF of 39221 and 39240?

We will first find the prime factorization of 39221 and 39240. After we will calculate the factors of 39221 and 39240 and find the biggest common factor number .

Step-1: Prime Factorization of 39221

Prime factors of 39221 are 7, 13, 431. Prime factorization of 39221 in exponential form is:

39221 = 7¹ × 13¹ × 431¹

Step-2: Prime Factorization of 39240

Prime factors of 39240 are 2, 3, 5, 109. Prime factorization of 39240 in exponential form is:

39240 = 2³ × 3² × 5¹ × 109¹

Step-3: Factors of 39221

List of positive integer factors of 39221 that divides 39221 without a remainder.

1, 7, 13, 91, 431, 3017, 5603

Step-4: Factors of 39240

List of positive integer factors of 39240 that divides 39221 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 109, 120, 180, 218, 327, 360, 436, 545, 654, 872, 981, 1090, 1308, 1635, 1962, 2180, 2616, 3270, 3924, 4360, 4905, 6540, 7848, 9810, 13080, 19620

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39221 and 39240. The biggest common factor number is the GCF number.
So the greatest common factor 39221 and 39240 is 1.

Also check out the Least Common Multiple of 39221 and 39240