Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1687 and 1692 the smallest integer that is 2854404 that is divisible by both numbers.
Least Common Multiple (LCM) of 1687 and 1692 is 2854404.
LCM(1687,1692) = 2854404
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 1687 and 1692. First we will calculate the prime factors of 1687 and 1692.
Prime Factorization of 1687
7 | 1687 |
241 | 241 |
1 |
Prime factors of 1687 are 7,241. Prime factorization of 1687 in exponential form is:
1687 = 71×2411
Prime Factorization of 1692
2 | 1692 |
2 | 846 |
3 | 423 |
3 | 141 |
47 | 47 |
1 |
Prime factors of 1692 are 2, 3,47. Prime factorization of 1692 in exponential form is:
1692 = 22×32×471
Now multiplying the highest exponent prime factors to calculate the LCM of 1687 and 1692.
LCM(1687,1692) = 22×32×71×471×2411
LCM(1687,1692) = 2854404
Factors of 1687
List of positive integer factors of 1687 that divides 1687 without a remainder.
1, 7, 241, 1687
Factors of 1692
List of positive integer factors of 1692 that divides 1692 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1687 and 1692, than apply into the LCM equation.
GCF(1687,1692) = 1
LCM(1687,1692) = ( 1687 × 1692) / 1
LCM(1687,1692) = 2854404 / 1
LCM(1687,1692) = 2854404
(i) The LCM of 1692 and 1687 is associative
LCM of 1687 and 1692 = LCM of 1692 and 1687
1. What is the LCM of 1687 and 1692?
Answer: LCM of 1687 and 1692 is 2854404.
2. What are the Factors of 1687?
Answer: Factors of 1687 are 1, 7, 241, 1687. There are 4 integers that are factors of 1687. The greatest factor of 1687 is 1687.
3. What are the Factors of 1692?
Answer: Factors of 1692 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692. There are 18 integers that are factors of 1692. The greatest factor of 1692 is 1692.
4. How to Find the LCM of 1687 and 1692?
Answer:
Least Common Multiple of 1687 and 1692 = 2854404
Step 1: Find the prime factorization of 1687
1687 = 7 x 241
Step 2: Find the prime factorization of 1692
1692 = 2 x 2 x 3 x 3 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2854404 = 2 x 2 x 3 x 3 x 7 x 47 x 241
Step 4: Therefore, the least common multiple of 1687 and 1692 is 2854404.