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 1681, 1687 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1681 and 1687 is 1.
GCF(1681,1687) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1681
41 | 1681 |
41 | 41 |
1 |
Prime factors of 1681 are 41. Prime factorization of 1681 in exponential form is:
1681 = 412
Prime Factorization of 1687
7 | 1687 |
241 | 241 |
1 |
Prime factors of 1687 are 7.Prime factorization of 1687 in exponential form is:
1687 = 71×2411
∴ So by taking common prime factors GCF of 1681 and 1687 is 1
Factors of 1681
List of positive integer factors of 1681 that divides 1681 without a remainder.
1,41,1681
Factors of 1687
List of positive integer factors of 1687 that divides 1687 without a remainder.
1,7,241,1687
Greatest Common Factor
We found the factors and prime factorization of 1681 and 1687. The biggest common factor number is the GCF number.
So the greatest common factor 1681 and 1687 is 1.
Also check out the Least Common Multiple of 1681 and 1687
(i) The GCF of 1681 and 1687 is associative
GCF of 1681 and 1687 = GCF of 1687 and 1681
1. What is the GCF of 1681 and 1687?
Answer: GCF of 1681 and 1687 is 1.
2. What are the Factors of 1681?
Answer: Factors of 1681 are 1, 41, 1681. There are 3 integers that are factors of 1681. The greatest factor of 1681 is 1681.
3. What are the Factors of 1687?
Answer: Factors of 1687 are 1, 7, 241, 1687. There are 4 integers that are factors of 1687. The greatest factor of 1687 is 1687.
4. How to Find the GCF of 1681 and 1687?
Answer:
Greatest Common Factor of 1681 and 1687 = 1
Step 1: Find the prime factorization of 1681
1681 = 41 x 41
Step 2: Find the prime factorization of 1687
1687 = 7 x 241
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 1681 and 1687 is 1