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 1649, 1655 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1649 and 1655 is 1.
GCF(1649,1655) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1649
17 | 1649 |
97 | 97 |
1 |
Prime factors of 1649 are 17,97. Prime factorization of 1649 in exponential form is:
1649 = 171×971
Prime Factorization of 1655
5 | 1655 |
331 | 331 |
1 |
Prime factors of 1655 are 5,331. Prime factorization of 1655 in exponential form is:
1655 = 51×3311
∴ So by taking common prime factors GCF of 1649 and 1655 is 1
Factors of 1649
List of positive integer factors of 1649 that divides 1649 without a remainder.
1,17,97,1649
Factors of 1655
List of positive integer factors of 1655 that divides 1655 without a remainder.
1,5,331,1655
Greatest Common Factor
We found the factors and prime factorization of 1649 and 1655. The biggest common factor number is the GCF number.
So the greatest common factor 1649 and 1655 is 1.
Also check out the Least Common Multiple of 1649 and 1655
(i) The GCF of 1649 and 1655 is associative
GCF of 1649 and 1655 = GCF of 1655 and 1649
1. What is the GCF of 1649 and 1655?
Answer: GCF of 1649 and 1655 is 1.
2. What are the Factors of 1649?
Answer: Factors of 1649 are 1, 17, 97, 1649. There are 4 integers that are factors of 1649. The greatest factor of 1649 is 1649.
3. What are the Factors of 1655?
Answer: Factors of 1655 are 1, 5, 331, 1655. There are 4 integers that are factors of 1655. The greatest factor of 1655 is 1655.
4. How to Find the GCF of 1649 and 1655?
Answer:
Greatest Common Factor of 1649 and 1655 = 1
Step 1: Find the prime factorization of 1649
1649 = 17 x 97
Step 2: Find the prime factorization of 1655
1655 = 5 x 331
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 1649 and 1655 is 1