What is the Greatest Common Factor of 69940 and 69955?

Greatest common factor (GCF) of 69940 and 69955 is 5.

GCF(69940,69955) = 5

We will now calculate the prime factors of 69940 and 69955, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 69940 and 69955.

How to find the GCF of 69940 and 69955?

We will first find the prime factorization of 69940 and 69955. After we will calculate the factors of 69940 and 69955 and find the biggest common factor number .

Step-1: Prime Factorization of 69940

Prime factors of 69940 are 2, 5, 13, 269. Prime factorization of 69940 in exponential form is:

69940 = 2² × 5¹ × 13¹ × 269¹

Step-2: Prime Factorization of 69955

Prime factors of 69955 are 5, 17, 823. Prime factorization of 69955 in exponential form is:

69955 = 5¹ × 17¹ × 823¹

Step-3: Factors of 69940

List of positive integer factors of 69940 that divides 69940 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 269, 538, 1076, 1345, 2690, 3497, 5380, 6994, 13988, 17485, 34970

Step-4: Factors of 69955

List of positive integer factors of 69955 that divides 69940 without a remainder.

1, 5, 17, 85, 823, 4115, 13991

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 69940 and 69955. The biggest common factor number is the GCF number.
So the greatest common factor 69940 and 69955 is 5.

Also check out the Least Common Multiple of 69940 and 69955