What is the Greatest Common Factor of 90440 and 90460?

Greatest common factor (GCF) of 90440 and 90460 is 20.

GCF(90440,90460) = 20

We will now calculate the prime factors of 90440 and 90460, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90440 and 90460.

How to find the GCF of 90440 and 90460?

We will first find the prime factorization of 90440 and 90460. After we will calculate the factors of 90440 and 90460 and find the biggest common factor number .

Step-1: Prime Factorization of 90440

Prime factors of 90440 are 2, 5, 7, 17, 19. Prime factorization of 90440 in exponential form is:

90440 = 2³ × 5¹ × 7¹ × 17¹ × 19¹

Step-2: Prime Factorization of 90460

Prime factors of 90460 are 2, 5, 4523. Prime factorization of 90460 in exponential form is:

90460 = 2² × 5¹ × 4523¹

Step-3: Factors of 90440

List of positive integer factors of 90440 that divides 90440 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1615, 2261, 2380, 2584, 2660, 3230, 4522, 4760, 5320, 6460, 9044, 11305, 12920, 18088, 22610, 45220

Step-4: Factors of 90460

List of positive integer factors of 90460 that divides 90440 without a remainder.

1, 2, 4, 5, 10, 20, 4523, 9046, 18092, 22615, 45230

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90440 and 90460. The biggest common factor number is the GCF number.
So the greatest common factor 90440 and 90460 is 20.

Also check out the Least Common Multiple of 90440 and 90460