What is the Greatest Common Factor of 75438 and 75455?

Greatest common factor (GCF) of 75438 and 75455 is 1.

GCF(75438,75455) = 1

We will now calculate the prime factors of 75438 and 75455, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 75438 and 75455.

How to find the GCF of 75438 and 75455?

We will first find the prime factorization of 75438 and 75455. After we will calculate the factors of 75438 and 75455 and find the biggest common factor number .

Step-1: Prime Factorization of 75438

Prime factors of 75438 are 2, 3, 11, 127. Prime factorization of 75438 in exponential form is:

75438 = 2¹ × 3³ × 11¹ × 127¹

Step-2: Prime Factorization of 75455

Prime factors of 75455 are 5, 15091. Prime factorization of 75455 in exponential form is:

75455 = 5¹ × 15091¹

Step-3: Factors of 75438

List of positive integer factors of 75438 that divides 75438 without a remainder.

1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 127, 198, 254, 297, 381, 594, 762, 1143, 1397, 2286, 2794, 3429, 4191, 6858, 8382, 12573, 25146, 37719

Step-4: Factors of 75455

List of positive integer factors of 75455 that divides 75438 without a remainder.

1, 5, 15091

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 75438 and 75455. The biggest common factor number is the GCF number.
So the greatest common factor 75438 and 75455 is 1.

Also check out the Least Common Multiple of 75438 and 75455