What is the Greatest Common Factor of 27421 and 27438?

Greatest common factor (GCF) of 27421 and 27438 is 17.

GCF(27421,27438) = 17

We will now calculate the prime factors of 27421 and 27438, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27421 and 27438.

How to find the GCF of 27421 and 27438?

We will first find the prime factorization of 27421 and 27438. After we will calculate the factors of 27421 and 27438 and find the biggest common factor number .

Step-1: Prime Factorization of 27421

Prime factors of 27421 are 17, 1613. Prime factorization of 27421 in exponential form is:

27421 = 17¹ × 1613¹

Step-2: Prime Factorization of 27438

Prime factors of 27438 are 2, 3, 17, 269. Prime factorization of 27438 in exponential form is:

27438 = 2¹ × 3¹ × 17¹ × 269¹

Step-3: Factors of 27421

List of positive integer factors of 27421 that divides 27421 without a remainder.

1, 17, 1613

Step-4: Factors of 27438

List of positive integer factors of 27438 that divides 27421 without a remainder.

1, 2, 3, 6, 17, 34, 51, 102, 269, 538, 807, 1614, 4573, 9146, 13719

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27421 and 27438. The biggest common factor number is the GCF number.
So the greatest common factor 27421 and 27438 is 17.

Also check out the Least Common Multiple of 27421 and 27438