What is the Greatest Common Factor of 16470 and 16485?

Greatest common factor (GCF) of 16470 and 16485 is 15.

GCF(16470,16485) = 15

We will now calculate the prime factors of 16470 and 16485, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16470 and 16485.

How to find the GCF of 16470 and 16485?

We will first find the prime factorization of 16470 and 16485. After we will calculate the factors of 16470 and 16485 and find the biggest common factor number .

Step-1: Prime Factorization of 16470

Prime factors of 16470 are 2, 3, 5, 61. Prime factorization of 16470 in exponential form is:

16470 = 2¹ × 3³ × 5¹ × 61¹

Step-2: Prime Factorization of 16485

Prime factors of 16485 are 3, 5, 7, 157. Prime factorization of 16485 in exponential form is:

16485 = 3¹ × 5¹ × 7¹ × 157¹

Step-3: Factors of 16470

List of positive integer factors of 16470 that divides 16470 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1098, 1647, 1830, 2745, 3294, 5490, 8235

Step-4: Factors of 16485

List of positive integer factors of 16485 that divides 16470 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 157, 471, 785, 1099, 2355, 3297, 5495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16470 and 16485. The biggest common factor number is the GCF number.
So the greatest common factor 16470 and 16485 is 15.

Also check out the Least Common Multiple of 16470 and 16485