What is the Greatest Common Factor of 1770 and 1779?

Greatest common factor (GCF) of 1770 and 1779 is 3.

GCF(1770,1779) = 3

We will now calculate the prime factors of 1770 and 1779, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1770 and 1779.

How to find the GCF of 1770 and 1779?

We will first find the prime factorization of 1770 and 1779. After we will calculate the factors of 1770 and 1779 and find the biggest common factor number .

Step-1: Prime Factorization of 1770

Prime factors of 1770 are 2, 3, 5, 59. Prime factorization of 1770 in exponential form is:

1770 = 2¹ × 3¹ × 5¹ × 59¹

Step-2: Prime Factorization of 1779

Prime factors of 1779 are 3, 593. Prime factorization of 1779 in exponential form is:

1779 = 3¹ × 593¹

Step-3: Factors of 1770

List of positive integer factors of 1770 that divides 1770 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 59, 118, 177, 295, 354, 590, 885

Step-4: Factors of 1779

List of positive integer factors of 1779 that divides 1770 without a remainder.

1, 3, 593

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1770 and 1779. The biggest common factor number is the GCF number.
So the greatest common factor 1770 and 1779 is 3.

Also check out the Least Common Multiple of 1770 and 1779