Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1857 and 1861 the smallest integer that is 3455877 that is divisible by both numbers.
Least Common Multiple (LCM) of 1857 and 1861 is 3455877.
LCM(1857,1861) = 3455877
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 1857 and 1861. First we will calculate the prime factors of 1857 and 1861.
Prime Factorization of 1857
3 | 1857 |
619 | 619 |
1 |
Prime factors of 1857 are 3,619. Prime factorization of 1857 in exponential form is:
1857 = 31×6191
Prime Factorization of 1861
1861 | 1861 |
1 |
Prime factors of 1861 are 1861. Prime factorization of 1861 in exponential form is:
1861 = 18611
Now multiplying the highest exponent prime factors to calculate the LCM of 1857 and 1861.
LCM(1857,1861) = 31×6191×18611
LCM(1857,1861) = 3455877
Factors of 1857
List of positive integer factors of 1857 that divides 1857 without a remainder.
1, 3, 619, 1857
Factors of 1861
List of positive integer factors of 1861 that divides 1861 without a remainder.
1, 1861
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1857 and 1861, than apply into the LCM equation.
GCF(1857,1861) = 1
LCM(1857,1861) = ( 1857 × 1861) / 1
LCM(1857,1861) = 3455877 / 1
LCM(1857,1861) = 3455877
(i) The LCM of 1861 and 1857 is associative
LCM of 1857 and 1861 = LCM of 1861 and 1857
1. What is the LCM of 1857 and 1861?
Answer: LCM of 1857 and 1861 is 3455877.
2. What are the Factors of 1857?
Answer: Factors of 1857 are 1, 3, 619, 1857. There are 4 integers that are factors of 1857. The greatest factor of 1857 is 1857.
3. 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.
4. How to Find the LCM of 1857 and 1861?
Answer:
Least Common Multiple of 1857 and 1861 = 3455877
Step 1: Find the prime factorization of 1857
1857 = 3 x 619
Step 2: Find the prime factorization of 1861
1861 = 1861
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3455877 = 3 x 619 x 1861
Step 4: Therefore, the least common multiple of 1857 and 1861 is 3455877.