What is the Greatest Common Factor of 90380 and 90390?

Greatest common factor (GCF) of 90380 and 90390 is 10.

GCF(90380,90390) = 10

We will now calculate the prime factors of 90380 and 90390, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90380 and 90390.

How to find the GCF of 90380 and 90390?

We will first find the prime factorization of 90380 and 90390. After we will calculate the factors of 90380 and 90390 and find the biggest common factor number .

Step-1: Prime Factorization of 90380

Prime factors of 90380 are 2, 5, 4519. Prime factorization of 90380 in exponential form is:

90380 = 2² × 5¹ × 4519¹

Step-2: Prime Factorization of 90390

Prime factors of 90390 are 2, 3, 5, 23, 131. Prime factorization of 90390 in exponential form is:

90390 = 2¹ × 3¹ × 5¹ × 23¹ × 131¹

Step-3: Factors of 90380

List of positive integer factors of 90380 that divides 90380 without a remainder.

1, 2, 4, 5, 10, 20, 4519, 9038, 18076, 22595, 45190

Step-4: Factors of 90390

List of positive integer factors of 90390 that divides 90380 without a remainder.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 131, 138, 230, 262, 345, 393, 655, 690, 786, 1310, 1965, 3013, 3930, 6026, 9039, 15065, 18078, 30130, 45195

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90380 and 90390. The biggest common factor number is the GCF number.
So the greatest common factor 90380 and 90390 is 10.

Also check out the Least Common Multiple of 90380 and 90390