What is the Greatest Common Factor of 9780 and 9787?

Greatest common factor (GCF) of 9780 and 9787 is 1.

GCF(9780,9787) = 1

We will now calculate the prime factors of 9780 and 9787, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9780 and 9787.

How to find the GCF of 9780 and 9787?

We will first find the prime factorization of 9780 and 9787. After we will calculate the factors of 9780 and 9787 and find the biggest common factor number .

Step-1: Prime Factorization of 9780

Prime factors of 9780 are 2, 3, 5, 163. Prime factorization of 9780 in exponential form is:

9780 = 2² × 3¹ × 5¹ × 163¹

Step-2: Prime Factorization of 9787

Prime factors of 9787 are 9787. Prime factorization of 9787 in exponential form is:

9787 = 9787¹

Step-3: Factors of 9780

List of positive integer factors of 9780 that divides 9780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 652, 815, 978, 1630, 1956, 2445, 3260, 4890

Step-4: Factors of 9787

List of positive integer factors of 9787 that divides 9780 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9780 and 9787. The biggest common factor number is the GCF number.
So the greatest common factor 9780 and 9787 is 1.

Also check out the Least Common Multiple of 9780 and 9787