Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1850 and 1855 the smallest integer that is 686350 that is divisible by both numbers.
Least Common Multiple (LCM) of 1850 and 1855 is 686350.
LCM(1850,1855) = 686350
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 1850 and 1855. First we will calculate the prime factors of 1850 and 1855.
Prime Factorization of 1850
2 | 1850 |
5 | 925 |
5 | 185 |
37 | 37 |
1 |
Prime factors of 1850 are 2, 5,37. Prime factorization of 1850 in exponential form is:
1850 = 21×52×371
Prime Factorization of 1855
5 | 1855 |
7 | 371 |
53 | 53 |
1 |
Prime factors of 1855 are 5, 7,53. Prime factorization of 1855 in exponential form is:
1855 = 51×71×531
Now multiplying the highest exponent prime factors to calculate the LCM of 1850 and 1855.
LCM(1850,1855) = 21×52×71×371×531
LCM(1850,1855) = 686350
Factors of 1850
List of positive integer factors of 1850 that divides 1850 without a remainder.
1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850
Factors of 1855
List of positive integer factors of 1855 that divides 1855 without a remainder.
1, 5, 7, 35, 53, 265, 371, 1855
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1850 and 1855, than apply into the LCM equation.
GCF(1850,1855) = 5
LCM(1850,1855) = ( 1850 × 1855) / 5
LCM(1850,1855) = 3431750 / 5
LCM(1850,1855) = 686350
(i) The LCM of 1855 and 1850 is associative
LCM of 1850 and 1855 = LCM of 1855 and 1850
1. What is the LCM of 1850 and 1855?
Answer: LCM of 1850 and 1855 is 686350.
2. What are the Factors of 1850?
Answer: Factors of 1850 are 1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850. There are 12 integers that are factors of 1850. The greatest factor of 1850 is 1850.
3. What are the Factors of 1855?
Answer: Factors of 1855 are 1, 5, 7, 35, 53, 265, 371, 1855. There are 8 integers that are factors of 1855. The greatest factor of 1855 is 1855.
4. How to Find the LCM of 1850 and 1855?
Answer:
Least Common Multiple of 1850 and 1855 = 686350
Step 1: Find the prime factorization of 1850
1850 = 2 x 5 x 5 x 37
Step 2: Find the prime factorization of 1855
1855 = 5 x 7 x 53
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 686350 = 2 x 5 x 5 x 7 x 37 x 53
Step 4: Therefore, the least common multiple of 1850 and 1855 is 686350.