What is the Greatest Common Factor of 40419 and 40428?

Greatest common factor (GCF) of 40419 and 40428 is 9.

GCF(40419,40428) = 9

We will now calculate the prime factors of 40419 and 40428, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40419 and 40428.

How to find the GCF of 40419 and 40428?

We will first find the prime factorization of 40419 and 40428. After we will calculate the factors of 40419 and 40428 and find the biggest common factor number .

Step-1: Prime Factorization of 40419

Prime factors of 40419 are 3, 499. Prime factorization of 40419 in exponential form is:

40419 = 3⁴ × 499¹

Step-2: Prime Factorization of 40428

Prime factors of 40428 are 2, 3, 1123. Prime factorization of 40428 in exponential form is:

40428 = 2² × 3² × 1123¹

Step-3: Factors of 40419

List of positive integer factors of 40419 that divides 40419 without a remainder.

1, 3, 9, 27, 81, 499, 1497, 4491, 13473

Step-4: Factors of 40428

List of positive integer factors of 40428 that divides 40419 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 1123, 2246, 3369, 4492, 6738, 10107, 13476, 20214

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40419 and 40428. The biggest common factor number is the GCF number.
So the greatest common factor 40419 and 40428 is 9.

Also check out the Least Common Multiple of 40419 and 40428