What is the Greatest Common Factor of 47209 and 47220?

Greatest common factor (GCF) of 47209 and 47220 is 1.

GCF(47209,47220) = 1

We will now calculate the prime factors of 47209 and 47220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 47209 and 47220.

How to find the GCF of 47209 and 47220?

We will first find the prime factorization of 47209 and 47220. After we will calculate the factors of 47209 and 47220 and find the biggest common factor number .

Step-1: Prime Factorization of 47209

Prime factors of 47209 are 17, 2777. Prime factorization of 47209 in exponential form is:

47209 = 17¹ × 2777¹

Step-2: Prime Factorization of 47220

Prime factors of 47220 are 2, 3, 5, 787. Prime factorization of 47220 in exponential form is:

47220 = 2² × 3¹ × 5¹ × 787¹

Step-3: Factors of 47209

List of positive integer factors of 47209 that divides 47209 without a remainder.

1, 17, 2777

Step-4: Factors of 47220

List of positive integer factors of 47220 that divides 47209 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 787, 1574, 2361, 3148, 3935, 4722, 7870, 9444, 11805, 15740, 23610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 47209 and 47220. The biggest common factor number is the GCF number.
So the greatest common factor 47209 and 47220 is 1.

Also check out the Least Common Multiple of 47209 and 47220