What is the Greatest Common Factor of 30240 and 30247?

Greatest common factor (GCF) of 30240 and 30247 is 7.

GCF(30240,30247) = 7

We will now calculate the prime factors of 30240 and 30247, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30240 and 30247.

How to find the GCF of 30240 and 30247?

We will first find the prime factorization of 30240 and 30247. After we will calculate the factors of 30240 and 30247 and find the biggest common factor number .

Step-1: Prime Factorization of 30240

Prime factors of 30240 are 2, 3, 5, 7. Prime factorization of 30240 in exponential form is:

30240 = 2⁵ × 3³ × 5¹ × 7¹

Step-2: Prime Factorization of 30247

Prime factors of 30247 are 7, 29, 149. Prime factorization of 30247 in exponential form is:

30247 = 7¹ × 29¹ × 149¹

Step-3: Factors of 30240

List of positive integer factors of 30240 that divides 30240 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120

Step-4: Factors of 30247

List of positive integer factors of 30247 that divides 30240 without a remainder.

1, 7, 29, 149, 203, 1043, 4321

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30240 and 30247. The biggest common factor number is the GCF number.
So the greatest common factor 30240 and 30247 is 7.

Also check out the Least Common Multiple of 30240 and 30247