Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1795 and 1800 the smallest integer that is 646200 that is divisible by both numbers.
Least Common Multiple (LCM) of 1795 and 1800 is 646200.
LCM(1795,1800) = 646200
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 1795 and 1800. First we will calculate the prime factors of 1795 and 1800.
Prime Factorization of 1795
5 | 1795 |
359 | 359 |
1 |
Prime factors of 1795 are 5,359. Prime factorization of 1795 in exponential form is:
1795 = 51×3591
Prime Factorization of 1800
2 | 1800 |
2 | 900 |
2 | 450 |
3 | 225 |
3 | 75 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 1800 are 2, 3,5. Prime factorization of 1800 in exponential form is:
1800 = 23×32×52
Now multiplying the highest exponent prime factors to calculate the LCM of 1795 and 1800.
LCM(1795,1800) = 23×32×52×3591
LCM(1795,1800) = 646200
Factors of 1795
List of positive integer factors of 1795 that divides 1795 without a remainder.
1, 5, 359, 1795
Factors of 1800
List of positive integer factors of 1800 that divides 1800 without a remainder.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1795 and 1800, than apply into the LCM equation.
GCF(1795,1800) = 5
LCM(1795,1800) = ( 1795 × 1800) / 5
LCM(1795,1800) = 3231000 / 5
LCM(1795,1800) = 646200
(i) The LCM of 1800 and 1795 is associative
LCM of 1795 and 1800 = LCM of 1800 and 1795
1. What is the LCM of 1795 and 1800?
Answer: LCM of 1795 and 1800 is 646200.
2. What are the Factors of 1795?
Answer: Factors of 1795 are 1, 5, 359, 1795. There are 4 integers that are factors of 1795. The greatest factor of 1795 is 1795.
3. What are the Factors of 1800?
Answer: Factors of 1800 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800. There are 36 integers that are factors of 1800. The greatest factor of 1800 is 1800.
4. How to Find the LCM of 1795 and 1800?
Answer:
Least Common Multiple of 1795 and 1800 = 646200
Step 1: Find the prime factorization of 1795
1795 = 5 x 359
Step 2: Find the prime factorization of 1800
1800 = 2 x 2 x 2 x 3 x 3 x 5 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 646200 = 2 x 2 x 2 x 3 x 3 x 5 x 5 x 359
Step 4: Therefore, the least common multiple of 1795 and 1800 is 646200.