Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1668 and 1675 the smallest integer that is 2793900 that is divisible by both numbers.
Least Common Multiple (LCM) of 1668 and 1675 is 2793900.
LCM(1668,1675) = 2793900
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 1668 and 1675. First we will calculate the prime factors of 1668 and 1675.
Prime Factorization of 1668
2 | 1668 |
2 | 834 |
3 | 417 |
139 | 139 |
1 |
Prime factors of 1668 are 2, 3,139. Prime factorization of 1668 in exponential form is:
1668 = 22×31×1391
Prime Factorization of 1675
5 | 1675 |
5 | 335 |
67 | 67 |
1 |
Prime factors of 1675 are 5,67. Prime factorization of 1675 in exponential form is:
1675 = 52×671
Now multiplying the highest exponent prime factors to calculate the LCM of 1668 and 1675.
LCM(1668,1675) = 22×31×52×671×1391
LCM(1668,1675) = 2793900
Factors of 1668
List of positive integer factors of 1668 that divides 1668 without a remainder.
1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668
Factors of 1675
List of positive integer factors of 1675 that divides 1675 without a remainder.
1, 5, 25, 67, 335, 1675
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1668 and 1675, than apply into the LCM equation.
GCF(1668,1675) = 1
LCM(1668,1675) = ( 1668 × 1675) / 1
LCM(1668,1675) = 2793900 / 1
LCM(1668,1675) = 2793900
(i) The LCM of 1675 and 1668 is associative
LCM of 1668 and 1675 = LCM of 1675 and 1668
1. What is the LCM of 1668 and 1675?
Answer: LCM of 1668 and 1675 is 2793900.
2. What are the Factors of 1668?
Answer: Factors of 1668 are 1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668. There are 12 integers that are factors of 1668. The greatest factor of 1668 is 1668.
3. What are the Factors of 1675?
Answer: Factors of 1675 are 1, 5, 25, 67, 335, 1675. There are 6 integers that are factors of 1675. The greatest factor of 1675 is 1675.
4. How to Find the LCM of 1668 and 1675?
Answer:
Least Common Multiple of 1668 and 1675 = 2793900
Step 1: Find the prime factorization of 1668
1668 = 2 x 2 x 3 x 139
Step 2: Find the prime factorization of 1675
1675 = 5 x 5 x 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2793900 = 2 x 2 x 3 x 5 x 5 x 67 x 139
Step 4: Therefore, the least common multiple of 1668 and 1675 is 2793900.