What is the Greatest Common Factor of 42745 and 42757?

Greatest common factor (GCF) of 42745 and 42757 is 1.

GCF(42745,42757) = 1

We will now calculate the prime factors of 42745 and 42757, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42745 and 42757.

How to find the GCF of 42745 and 42757?

We will first find the prime factorization of 42745 and 42757. After we will calculate the factors of 42745 and 42757 and find the biggest common factor number .

Step-1: Prime Factorization of 42745

Prime factors of 42745 are 5, 83, 103. Prime factorization of 42745 in exponential form is:

42745 = 5¹ × 83¹ × 103¹

Step-2: Prime Factorization of 42757

Prime factors of 42757 are 11, 13, 23. Prime factorization of 42757 in exponential form is:

42757 = 11¹ × 13² × 23¹

Step-3: Factors of 42745

List of positive integer factors of 42745 that divides 42745 without a remainder.

1, 5, 83, 103, 415, 515, 8549

Step-4: Factors of 42757

List of positive integer factors of 42757 that divides 42745 without a remainder.

1, 11, 13, 23, 143, 169, 253, 299, 1859, 3289, 3887

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42745 and 42757. The biggest common factor number is the GCF number.
So the greatest common factor 42745 and 42757 is 1.

Also check out the Least Common Multiple of 42745 and 42757