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 1655, 1660 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1655 and 1660 is 5.
GCF(1655,1660) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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
Prime Factorization of 1660
2 | 1660 |
2 | 830 |
5 | 415 |
83 | 83 |
1 |
Prime factors of 1660 are 2,5,83. Prime factorization of 1660 in exponential form is:
1660 = 22×51×831
∴ So by taking common prime factors GCF of 1655 and 1660 is 5
Factors of 1655
List of positive integer factors of 1655 that divides 1655 without a remainder.
1,5,331,1655
Factors of 1660
List of positive integer factors of 1660 that divides 1660 without a remainder.
1,2,4,5,10,20,83,166,332,415,830,1660
Greatest Common Factor
We found the factors and prime factorization of 1655 and 1660. The biggest common factor number is the GCF number.
So the greatest common factor 1655 and 1660 is 5.
Also check out the Least Common Multiple of 1655 and 1660
(i) The GCF of 1655 and 1660 is associative
GCF of 1655 and 1660 = GCF of 1660 and 1655
1. What is the GCF of 1655 and 1660?
Answer: GCF of 1655 and 1660 is 5.
2. 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.
3. What are the Factors of 1660?
Answer: Factors of 1660 are 1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660. There are 12 integers that are factors of 1660. The greatest factor of 1660 is 1660.
4. How to Find the GCF of 1655 and 1660?
Answer:
Greatest Common Factor of 1655 and 1660 = 5
Step 1: Find the prime factorization of 1655
1655 = 5 x 331
Step 2: Find the prime factorization of 1660
1660 = 2 x 2 x 5 x 83
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 1655 and 1660 is 5