What is the Greatest Common Factor of 90403 and 90420?

Greatest common factor (GCF) of 90403 and 90420 is 1.

GCF(90403,90420) = 1

We will now calculate the prime factors of 90403 and 90420, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90403 and 90420.

How to find the GCF of 90403 and 90420?

We will first find the prime factorization of 90403 and 90420. After we will calculate the factors of 90403 and 90420 and find the biggest common factor number .

Step-1: Prime Factorization of 90403

Prime factors of 90403 are 90403. Prime factorization of 90403 in exponential form is:

90403 = 90403¹

Step-2: Prime Factorization of 90420

Prime factors of 90420 are 2, 3, 5, 11, 137. Prime factorization of 90420 in exponential form is:

90420 = 2² × 3¹ × 5¹ × 11¹ × 137¹

Step-3: Factors of 90403

List of positive integer factors of 90403 that divides 90403 without a remainder.

Step-4: Factors of 90420

List of positive integer factors of 90420 that divides 90403 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 137, 165, 220, 274, 330, 411, 548, 660, 685, 822, 1370, 1507, 1644, 2055, 2740, 3014, 4110, 4521, 6028, 7535, 8220, 9042, 15070, 18084, 22605, 30140, 45210

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90403 and 90420. The biggest common factor number is the GCF number.
So the greatest common factor 90403 and 90420 is 1.

Also check out the Least Common Multiple of 90403 and 90420