What is the Greatest Common Factor of 29890 and 29905?

Greatest common factor (GCF) of 29890 and 29905 is 5.

GCF(29890,29905) = 5

We will now calculate the prime factors of 29890 and 29905, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 29890 and 29905.

How to find the GCF of 29890 and 29905?

We will first find the prime factorization of 29890 and 29905. After we will calculate the factors of 29890 and 29905 and find the biggest common factor number .

Step-1: Prime Factorization of 29890

Prime factors of 29890 are 2, 5, 7, 61. Prime factorization of 29890 in exponential form is:

29890 = 2¹ × 5¹ × 7² × 61¹

Step-2: Prime Factorization of 29905

Prime factors of 29905 are 5, 5981. Prime factorization of 29905 in exponential form is:

29905 = 5¹ × 5981¹

Step-3: Factors of 29890

List of positive integer factors of 29890 that divides 29890 without a remainder.

1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945

Step-4: Factors of 29905

List of positive integer factors of 29905 that divides 29890 without a remainder.

1, 5, 5981

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 29890 and 29905. The biggest common factor number is the GCF number.
So the greatest common factor 29890 and 29905 is 5.

Also check out the Least Common Multiple of 29890 and 29905