Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1661 and 1662 the smallest integer that is 2760582 that is divisible by both numbers.
Least Common Multiple (LCM) of 1661 and 1662 is 2760582.
LCM(1661,1662) = 2760582
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 1661 and 1662. First we will calculate the prime factors of 1661 and 1662.
Prime Factorization of 1661
11 | 1661 |
151 | 151 |
1 |
Prime factors of 1661 are 11,151. Prime factorization of 1661 in exponential form is:
1661 = 111×1511
Prime Factorization of 1662
2 | 1662 |
3 | 831 |
277 | 277 |
1 |
Prime factors of 1662 are 2, 3,277. Prime factorization of 1662 in exponential form is:
1662 = 21×31×2771
Now multiplying the highest exponent prime factors to calculate the LCM of 1661 and 1662.
LCM(1661,1662) = 21×31×111×1511×2771
LCM(1661,1662) = 2760582
Factors of 1661
List of positive integer factors of 1661 that divides 1661 without a remainder.
1, 11, 151, 1661
Factors of 1662
List of positive integer factors of 1662 that divides 1662 without a remainder.
1, 2, 3, 6, 277, 554, 831, 1662
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1661 and 1662, than apply into the LCM equation.
GCF(1661,1662) = 1
LCM(1661,1662) = ( 1661 × 1662) / 1
LCM(1661,1662) = 2760582 / 1
LCM(1661,1662) = 2760582
(i) The LCM of 1662 and 1661 is associative
LCM of 1661 and 1662 = LCM of 1662 and 1661
1. What is the LCM of 1661 and 1662?
Answer: LCM of 1661 and 1662 is 2760582.
2. What are the Factors of 1661?
Answer: Factors of 1661 are 1, 11, 151, 1661. There are 4 integers that are factors of 1661. The greatest factor of 1661 is 1661.
3. What are the Factors of 1662?
Answer: Factors of 1662 are 1, 2, 3, 6, 277, 554, 831, 1662. There are 8 integers that are factors of 1662. The greatest factor of 1662 is 1662.
4. How to Find the LCM of 1661 and 1662?
Answer:
Least Common Multiple of 1661 and 1662 = 2760582
Step 1: Find the prime factorization of 1661
1661 = 11 x 151
Step 2: Find the prime factorization of 1662
1662 = 2 x 3 x 277
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2760582 = 2 x 3 x 11 x 151 x 277
Step 4: Therefore, the least common multiple of 1661 and 1662 is 2760582.