What is the Greatest Common Factor of 19710 and 19719?

Greatest common factor (GCF) of 19710 and 19719 is 9.

GCF(19710,19719) = 9

We will now calculate the prime factors of 19710 and 19719, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19710 and 19719.

How to find the GCF of 19710 and 19719?

We will first find the prime factorization of 19710 and 19719. After we will calculate the factors of 19710 and 19719 and find the biggest common factor number .

Step-1: Prime Factorization of 19710

Prime factors of 19710 are 2, 3, 5, 73. Prime factorization of 19710 in exponential form is:

19710 = 2¹ × 3³ × 5¹ × 73¹

Step-2: Prime Factorization of 19719

Prime factors of 19719 are 3, 7, 313. Prime factorization of 19719 in exponential form is:

19719 = 3² × 7¹ × 313¹

Step-3: Factors of 19710

List of positive integer factors of 19710 that divides 19710 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 73, 90, 135, 146, 219, 270, 365, 438, 657, 730, 1095, 1314, 1971, 2190, 3285, 3942, 6570, 9855

Step-4: Factors of 19719

List of positive integer factors of 19719 that divides 19710 without a remainder.

1, 3, 7, 9, 21, 63, 313, 939, 2191, 2817, 6573

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19710 and 19719. The biggest common factor number is the GCF number.
So the greatest common factor 19710 and 19719 is 9.

Also check out the Least Common Multiple of 19710 and 19719