Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1861 and 1866 the smallest integer that is 3472626 that is divisible by both numbers.
Least Common Multiple (LCM) of 1861 and 1866 is 3472626.
LCM(1861,1866) = 3472626
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 1861 and 1866. First we will calculate the prime factors of 1861 and 1866.
Prime Factorization of 1861
1861 | 1861 |
1 |
Prime factors of 1861 are 1861. Prime factorization of 1861 in exponential form is:
1861 = 18611
Prime Factorization of 1866
2 | 1866 |
3 | 933 |
311 | 311 |
1 |
Prime factors of 1866 are 2, 3,311. Prime factorization of 1866 in exponential form is:
1866 = 21×31×3111
Now multiplying the highest exponent prime factors to calculate the LCM of 1861 and 1866.
LCM(1861,1866) = 21×31×3111×18611
LCM(1861,1866) = 3472626
Factors of 1861
List of positive integer factors of 1861 that divides 1861 without a remainder.
1, 1861
Factors of 1866
List of positive integer factors of 1866 that divides 1866 without a remainder.
1, 2, 3, 6, 311, 622, 933, 1866
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1861 and 1866, than apply into the LCM equation.
GCF(1861,1866) = 1
LCM(1861,1866) = ( 1861 × 1866) / 1
LCM(1861,1866) = 3472626 / 1
LCM(1861,1866) = 3472626
(i) The LCM of 1866 and 1861 is associative
LCM of 1861 and 1866 = LCM of 1866 and 1861
1. What is the LCM of 1861 and 1866?
Answer: LCM of 1861 and 1866 is 3472626.
2. What are the Factors of 1861?
Answer: Factors of 1861 are 1, 1861. There are 2 integers that are factors of 1861. The greatest factor of 1861 is 1861.
3. What are the Factors of 1866?
Answer: Factors of 1866 are 1, 2, 3, 6, 311, 622, 933, 1866. There are 8 integers that are factors of 1866. The greatest factor of 1866 is 1866.
4. How to Find the LCM of 1861 and 1866?
Answer:
Least Common Multiple of 1861 and 1866 = 3472626
Step 1: Find the prime factorization of 1861
1861 = 1861
Step 2: Find the prime factorization of 1866
1866 = 2 x 3 x 311
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3472626 = 2 x 3 x 311 x 1861
Step 4: Therefore, the least common multiple of 1861 and 1866 is 3472626.