What is the Greatest Common Factor of 90809 and 90820?

Greatest common factor (GCF) of 90809 and 90820 is 1.

GCF(90809,90820) = 1

We will now calculate the prime factors of 90809 and 90820, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90809 and 90820.

How to find the GCF of 90809 and 90820?

We will first find the prime factorization of 90809 and 90820. After we will calculate the factors of 90809 and 90820 and find the biggest common factor number .

Step-1: Prime Factorization of 90809

Prime factors of 90809 are 71, 1279. Prime factorization of 90809 in exponential form is:

90809 = 71¹ × 1279¹

Step-2: Prime Factorization of 90820

Prime factors of 90820 are 2, 5, 19, 239. Prime factorization of 90820 in exponential form is:

90820 = 2² × 5¹ × 19¹ × 239¹

Step-3: Factors of 90809

List of positive integer factors of 90809 that divides 90809 without a remainder.

1, 71, 1279

Step-4: Factors of 90820

List of positive integer factors of 90820 that divides 90809 without a remainder.

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 239, 380, 478, 956, 1195, 2390, 4541, 4780, 9082, 18164, 22705, 45410

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90809 and 90820. The biggest common factor number is the GCF number.
So the greatest common factor 90809 and 90820 is 1.

Also check out the Least Common Multiple of 90809 and 90820