What is the Greatest Common Factor of 39605 and 39618?

Greatest common factor (GCF) of 39605 and 39618 is 1.

GCF(39605,39618) = 1

We will now calculate the prime factors of 39605 and 39618, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39605 and 39618.

How to find the GCF of 39605 and 39618?

We will first find the prime factorization of 39605 and 39618. After we will calculate the factors of 39605 and 39618 and find the biggest common factor number .

Step-1: Prime Factorization of 39605

Prime factors of 39605 are 5, 89. Prime factorization of 39605 in exponential form is:

39605 = 5¹ × 89²

Step-2: Prime Factorization of 39618

Prime factors of 39618 are 2, 3, 31, 71. Prime factorization of 39618 in exponential form is:

39618 = 2¹ × 3² × 31¹ × 71¹

Step-3: Factors of 39605

List of positive integer factors of 39605 that divides 39605 without a remainder.

1, 5, 89, 445, 7921

Step-4: Factors of 39618

List of positive integer factors of 39618 that divides 39605 without a remainder.

1, 2, 3, 6, 9, 18, 31, 62, 71, 93, 142, 186, 213, 279, 426, 558, 639, 1278, 2201, 4402, 6603, 13206, 19809

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39605 and 39618. The biggest common factor number is the GCF number.
So the greatest common factor 39605 and 39618 is 1.

Also check out the Least Common Multiple of 39605 and 39618