Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1611 and 1617 the smallest integer that is 868329 that is divisible by both numbers.
Least Common Multiple (LCM) of 1611 and 1617 is 868329.
LCM(1611,1617) = 868329
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 1611 and 1617. First we will calculate the prime factors of 1611 and 1617.
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
Now multiplying the highest exponent prime factors to calculate the LCM of 1611 and 1617.
LCM(1611,1617) = 32×72×111×1791
LCM(1611,1617) = 868329
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1611 and 1617, than apply into the LCM equation.
GCF(1611,1617) = 3
LCM(1611,1617) = ( 1611 × 1617) / 3
LCM(1611,1617) = 2604987 / 3
LCM(1611,1617) = 868329
(i) The LCM of 1617 and 1611 is associative
LCM of 1611 and 1617 = LCM of 1617 and 1611
1. What is the LCM of 1611 and 1617?
Answer: LCM of 1611 and 1617 is 868329.
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 LCM of 1611 and 1617?
Answer:
Least Common Multiple of 1611 and 1617 = 868329
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 each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 868329 = 3 x 3 x 7 x 7 x 11 x 179
Step 4: Therefore, the least common multiple of 1611 and 1617 is 868329.