What is the Greatest Common Factor of 72785 and 72800?

Greatest common factor (GCF) of 72785 and 72800 is 5.

GCF(72785,72800) = 5

We will now calculate the prime factors of 72785 and 72800, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72785 and 72800.

How to find the GCF of 72785 and 72800?

We will first find the prime factorization of 72785 and 72800. After we will calculate the factors of 72785 and 72800 and find the biggest common factor number .

Step-1: Prime Factorization of 72785

Prime factors of 72785 are 5, 14557. Prime factorization of 72785 in exponential form is:

72785 = 5¹ × 14557¹

Step-2: Prime Factorization of 72800

Prime factors of 72800 are 2, 5, 7, 13. Prime factorization of 72800 in exponential form is:

72800 = 2⁵ × 5² × 7¹ × 13¹

Step-3: Factors of 72785

List of positive integer factors of 72785 that divides 72785 without a remainder.

1, 5, 14557

Step-4: Factors of 72800

List of positive integer factors of 72800 that divides 72785 without a remainder.

1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 200, 208, 224, 260, 280, 325, 350, 364, 400, 416, 455, 520, 560, 650, 700, 728, 800, 910, 1040, 1120, 1300, 1400, 1456, 1820, 2080, 2275, 2600, 2800, 2912, 3640, 4550, 5200, 5600, 7280, 9100, 10400, 14560, 18200, 36400

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72785 and 72800. The biggest common factor number is the GCF number.
So the greatest common factor 72785 and 72800 is 5.

Also check out the Least Common Multiple of 72785 and 72800