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 1611, 1617 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1611 and 1617 is 3.
GCF(1611,1617) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1611
3 | 1611 |
3 | 537 |
179 | 179 |
1 |
Prime factors of 1611 are 3,179. Prime factorization of 1611 in exponential form is:
1611 = 32×1791
Prime Factorization of 1617
3 | 1617 |
7 | 539 |
7 | 77 |
11 | 11 |
1 |
Prime factors of 1617 are 3,7,11. Prime factorization of 1617 in exponential form is:
1617 = 31×72×111
∴ So by taking common prime factors GCF of 1611 and 1617 is 3
Factors of 1611
List of positive integer factors of 1611 that divides 1611 without a remainder.
1,3,9,179,537,1611
Factors of 1617
List of positive integer factors of 1617 that divides 1617 without a remainder.
1,3,7,11,21,33,49,77,147,231,539,1617
Greatest Common Factor
We found the factors and prime factorization of 1611 and 1617. The biggest common factor number is the GCF number.
So the greatest common factor 1611 and 1617 is 3.
Also check out the Least Common Multiple of 1611 and 1617
(i) The GCF of 1611 and 1617 is associative
GCF of 1611 and 1617 = GCF of 1617 and 1611
1. What is the GCF of 1611 and 1617?
Answer: GCF of 1611 and 1617 is 3.
2. What are the Factors of 1611?
Answer: Factors of 1611 are 1, 3, 9, 179, 537, 1611. There are 6 integers that are factors of 1611. The greatest factor of 1611 is 1611.
3. What are the Factors of 1617?
Answer: Factors of 1617 are 1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617. There are 12 integers that are factors of 1617. The greatest factor of 1617 is 1617.
4. How to Find the GCF of 1611 and 1617?
Answer:
Greatest Common Factor of 1611 and 1617 = 3
Step 1: Find the prime factorization of 1611
1611 = 3 x 3 x 179
Step 2: Find the prime factorization of 1617
1617 = 3 x 7 x 7 x 11
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 1611 and 1617 is 3