What is the Greatest Common Factor of 55540 and 55558?

Greatest common factor (GCF) of 55540 and 55558 is 2.

GCF(55540,55558) = 2

We will now calculate the prime factors of 55540 and 55558, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55540 and 55558.

How to find the GCF of 55540 and 55558?

We will first find the prime factorization of 55540 and 55558. After we will calculate the factors of 55540 and 55558 and find the biggest common factor number .

Step-1: Prime Factorization of 55540

Prime factors of 55540 are 2, 5, 2777. Prime factorization of 55540 in exponential form is:

55540 = 2² × 5¹ × 2777¹

Step-2: Prime Factorization of 55558

Prime factors of 55558 are 2, 27779. Prime factorization of 55558 in exponential form is:

55558 = 2¹ × 27779¹

Step-3: Factors of 55540

List of positive integer factors of 55540 that divides 55540 without a remainder.

1, 2, 4, 5, 10, 20, 2777, 5554, 11108, 13885, 27770

Step-4: Factors of 55558

List of positive integer factors of 55558 that divides 55540 without a remainder.

1, 2, 27779

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55540 and 55558. The biggest common factor number is the GCF number.
So the greatest common factor 55540 and 55558 is 2.

Also check out the Least Common Multiple of 55540 and 55558