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 1868 the smallest integer that is 3476348 that is divisible by both numbers.
Least Common Multiple (LCM) of 1861 and 1868 is 3476348.
LCM(1861,1868) = 3476348
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 1868. First we will calculate the prime factors of 1861 and 1868.
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 1868
2 | 1868 |
2 | 934 |
467 | 467 |
1 |
Prime factors of 1868 are 2,467. Prime factorization of 1868 in exponential form is:
1868 = 22×4671
Now multiplying the highest exponent prime factors to calculate the LCM of 1861 and 1868.
LCM(1861,1868) = 22×4671×18611
LCM(1861,1868) = 3476348
Factors of 1861
List of positive integer factors of 1861 that divides 1861 without a remainder.
1, 1861
Factors of 1868
List of positive integer factors of 1868 that divides 1868 without a remainder.
1, 2, 4, 467, 934, 1868
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1861 and 1868, than apply into the LCM equation.
GCF(1861,1868) = 1
LCM(1861,1868) = ( 1861 × 1868) / 1
LCM(1861,1868) = 3476348 / 1
LCM(1861,1868) = 3476348
(i) The LCM of 1868 and 1861 is associative
LCM of 1861 and 1868 = LCM of 1868 and 1861
1. What is the LCM of 1861 and 1868?
Answer: LCM of 1861 and 1868 is 3476348.
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 1868?
Answer: Factors of 1868 are 1, 2, 4, 467, 934, 1868. There are 6 integers that are factors of 1868. The greatest factor of 1868 is 1868.
4. How to Find the LCM of 1861 and 1868?
Answer:
Least Common Multiple of 1861 and 1868 = 3476348
Step 1: Find the prime factorization of 1861
1861 = 1861
Step 2: Find the prime factorization of 1868
1868 = 2 x 2 x 467
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3476348 = 2 x 2 x 467 x 1861
Step 4: Therefore, the least common multiple of 1861 and 1868 is 3476348.