What is the Greatest Common Factor of 55420 and 55436?

Greatest common factor (GCF) of 55420 and 55436 is 4.

GCF(55420,55436) = 4

We will now calculate the prime factors of 55420 and 55436, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55420 and 55436.

How to find the GCF of 55420 and 55436?

We will first find the prime factorization of 55420 and 55436. After we will calculate the factors of 55420 and 55436 and find the biggest common factor number .

Step-1: Prime Factorization of 55420

Prime factors of 55420 are 2, 5, 17, 163. Prime factorization of 55420 in exponential form is:

55420 = 2² × 5¹ × 17¹ × 163¹

Step-2: Prime Factorization of 55436

Prime factors of 55436 are 2, 13859. Prime factorization of 55436 in exponential form is:

55436 = 2² × 13859¹

Step-3: Factors of 55420

List of positive integer factors of 55420 that divides 55420 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 652, 815, 1630, 2771, 3260, 5542, 11084, 13855, 27710

Step-4: Factors of 55436

List of positive integer factors of 55436 that divides 55420 without a remainder.

1, 2, 4, 13859, 27718

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55420 and 55436. The biggest common factor number is the GCF number.
So the greatest common factor 55420 and 55436 is 4.

Also check out the Least Common Multiple of 55420 and 55436