What is the Greatest Common Factor of 72705 and 72709?

Greatest common factor (GCF) of 72705 and 72709 is 1.

GCF(72705,72709) = 1

We will now calculate the prime factors of 72705 and 72709, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72705 and 72709.

How to find the GCF of 72705 and 72709?

We will first find the prime factorization of 72705 and 72709. After we will calculate the factors of 72705 and 72709 and find the biggest common factor number .

Step-1: Prime Factorization of 72705

Prime factors of 72705 are 3, 5, 37, 131. Prime factorization of 72705 in exponential form is:

72705 = 3¹ × 5¹ × 37¹ × 131¹

Step-2: Prime Factorization of 72709

Prime factors of 72709 are 7, 13, 17, 47. Prime factorization of 72709 in exponential form is:

72709 = 7¹ × 13¹ × 17¹ × 47¹

Step-3: Factors of 72705

List of positive integer factors of 72705 that divides 72705 without a remainder.

1, 3, 5, 15, 37, 111, 131, 185, 393, 555, 655, 1965, 4847, 14541, 24235

Step-4: Factors of 72709

List of positive integer factors of 72709 that divides 72705 without a remainder.

1, 7, 13, 17, 47, 91, 119, 221, 329, 611, 799, 1547, 4277, 5593, 10387

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72705 and 72709. The biggest common factor number is the GCF number.
So the greatest common factor 72705 and 72709 is 1.

Also check out the Least Common Multiple of 72705 and 72709