What is the Greatest Common Factor of 47430 and 47439?

Greatest common factor (GCF) of 47430 and 47439 is 9.

GCF(47430,47439) = 9

We will now calculate the prime factors of 47430 and 47439, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 47430 and 47439.

How to find the GCF of 47430 and 47439?

We will first find the prime factorization of 47430 and 47439. After we will calculate the factors of 47430 and 47439 and find the biggest common factor number .

Step-1: Prime Factorization of 47430

Prime factors of 47430 are 2, 3, 5, 17, 31. Prime factorization of 47430 in exponential form is:

47430 = 2¹ × 3² × 5¹ × 17¹ × 31¹

Step-2: Prime Factorization of 47439

Prime factors of 47439 are 3, 7, 251. Prime factorization of 47439 in exponential form is:

47439 = 3³ × 7¹ × 251¹

Step-3: Factors of 47430

List of positive integer factors of 47430 that divides 47430 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 31, 34, 45, 51, 62, 85, 90, 93, 102, 153, 155, 170, 186, 255, 279, 306, 310, 465, 510, 527, 558, 765, 930, 1054, 1395, 1530, 1581, 2635, 2790, 3162, 4743, 5270, 7905, 9486, 15810, 23715

Step-4: Factors of 47439

List of positive integer factors of 47439 that divides 47430 without a remainder.

1, 3, 7, 9, 21, 27, 63, 189, 251, 753, 1757, 2259, 5271, 6777, 15813

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 47430 and 47439. The biggest common factor number is the GCF number.
So the greatest common factor 47430 and 47439 is 9.

Also check out the Least Common Multiple of 47430 and 47439