Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 28205, 28208 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 28205 and 28208 is 1.
GCF(28205,28208) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 28205
5 | 28205 |
5641 | 5641 |
1 |
Prime factors of 28205 are 5,5641. Prime factorization of 28205 in exponential form is:
28205 = 51×56411
Prime Factorization of 28208
2 | 28208 |
2 | 14104 |
2 | 7052 |
2 | 3526 |
41 | 1763 |
43 | 43 |
1 |
Prime factors of 28208 are 2,41,43. Prime factorization of 28208 in exponential form is:
28208 = 24×411×431
∴ So by taking common prime factors GCF of 28205 and 28208 is 1
Factors of 28205
List of positive integer factors of 28205 that divides 28205 without a remainder.
1,5,5641,28205
Factors of 28208
List of positive integer factors of 28208 that divides 28208 without a remainder.
1,2,4,8,16,41,43,82,86,164,172,328,344,656,688,1763,3526,7052,14104,28208
Greatest Common Factor
We found the factors and prime factorization of 28205 and 28208. The biggest common factor number is the GCF number.
So the greatest common factor 28205 and 28208 is 1.
Also check out the Least Common Multiple of 28205 and 28208
(i) The GCF of 28205 and 28208 is associative
GCF of 28205 and 28208 = GCF of 28208 and 28205
1. What is the GCF of 28205 and 28208?
Answer: GCF of 28205 and 28208 is 1.
2. What are the Factors of 28205?
Answer: Factors of 28205 are 1, 5, 5641, 28205. There are 4 integers that are factors of 28205. The greatest factor of 28205 is 28205.
3. What are the Factors of 28208?
Answer: Factors of 28208 are 1, 2, 4, 8, 16, 41, 43, 82, 86, 164, 172, 328, 344, 656, 688, 1763, 3526, 7052, 14104, 28208. There are 20 integers that are factors of 28208. The greatest factor of 28208 is 28208.
4. How to Find the GCF of 28205 and 28208?
Answer:
Greatest Common Factor of 28205 and 28208 = 1
Step 1: Find the prime factorization of 28205
28205 = 5 x 5641
Step 2: Find the prime factorization of 28208
28208 = 2 x 2 x 2 x 2 x 41 x 43
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = = 1
Step 4: Therefore, the greatest common factor of 28205 and 28208 is 1