What is the Greatest Common Factor of 73970 and 73990?

Greatest common factor (GCF) of 73970 and 73990 is 10.

GCF(73970,73990) = 10

We will now calculate the prime factors of 73970 and 73990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 73970 and 73990.

How to find the GCF of 73970 and 73990?

We will first find the prime factorization of 73970 and 73990. After we will calculate the factors of 73970 and 73990 and find the biggest common factor number .

Step-1: Prime Factorization of 73970

Prime factors of 73970 are 2, 5, 13, 569. Prime factorization of 73970 in exponential form is:

73970 = 2¹ × 5¹ × 13¹ × 569¹

Step-2: Prime Factorization of 73990

Prime factors of 73990 are 2, 5, 7, 151. Prime factorization of 73990 in exponential form is:

73990 = 2¹ × 5¹ × 7² × 151¹

Step-3: Factors of 73970

List of positive integer factors of 73970 that divides 73970 without a remainder.

1, 2, 5, 10, 13, 26, 65, 130, 569, 1138, 2845, 5690, 7397, 14794, 36985

Step-4: Factors of 73990

List of positive integer factors of 73990 that divides 73970 without a remainder.

1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 151, 245, 302, 490, 755, 1057, 1510, 2114, 5285, 7399, 10570, 14798, 36995

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 73970 and 73990. The biggest common factor number is the GCF number.
So the greatest common factor 73970 and 73990 is 10.

Also check out the Least Common Multiple of 73970 and 73990