What is the Greatest Common Factor of 90721 and 90740?

Greatest common factor (GCF) of 90721 and 90740 is 1.

GCF(90721,90740) = 1

We will now calculate the prime factors of 90721 and 90740, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90721 and 90740.

How to find the GCF of 90721 and 90740?

We will first find the prime factorization of 90721 and 90740. After we will calculate the factors of 90721 and 90740 and find the biggest common factor number .

Step-1: Prime Factorization of 90721

Prime factors of 90721 are 257, 353. Prime factorization of 90721 in exponential form is:

90721 = 257¹ × 353¹

Step-2: Prime Factorization of 90740

Prime factors of 90740 are 2, 5, 13, 349. Prime factorization of 90740 in exponential form is:

90740 = 2² × 5¹ × 13¹ × 349¹

Step-3: Factors of 90721

List of positive integer factors of 90721 that divides 90721 without a remainder.

1, 257, 353

Step-4: Factors of 90740

List of positive integer factors of 90740 that divides 90721 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 349, 698, 1396, 1745, 3490, 4537, 6980, 9074, 18148, 22685, 45370

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90721 and 90740. The biggest common factor number is the GCF number.
So the greatest common factor 90721 and 90740 is 1.

Also check out the Least Common Multiple of 90721 and 90740