Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1688 and 1694 the smallest integer that is 1429736 that is divisible by both numbers.
Least Common Multiple (LCM) of 1688 and 1694 is 1429736.
LCM(1688,1694) = 1429736
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 1688 and 1694. First we will calculate the prime factors of 1688 and 1694.
Prime Factorization of 1688
2 | 1688 |
2 | 844 |
2 | 422 |
211 | 211 |
1 |
Prime factors of 1688 are 2,211. Prime factorization of 1688 in exponential form is:
1688 = 23×2111
Prime Factorization of 1694
2 | 1694 |
7 | 847 |
11 | 121 |
11 | 11 |
1 |
Prime factors of 1694 are 2, 7,11. Prime factorization of 1694 in exponential form is:
1694 = 21×71×112
Now multiplying the highest exponent prime factors to calculate the LCM of 1688 and 1694.
LCM(1688,1694) = 23×71×112×2111
LCM(1688,1694) = 1429736
Factors of 1688
List of positive integer factors of 1688 that divides 1688 without a remainder.
1, 2, 4, 8, 211, 422, 844, 1688
Factors of 1694
List of positive integer factors of 1694 that divides 1694 without a remainder.
1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1688 and 1694, than apply into the LCM equation.
GCF(1688,1694) = 2
LCM(1688,1694) = ( 1688 × 1694) / 2
LCM(1688,1694) = 2859472 / 2
LCM(1688,1694) = 1429736
(i) The LCM of 1694 and 1688 is associative
LCM of 1688 and 1694 = LCM of 1694 and 1688
1. What is the LCM of 1688 and 1694?
Answer: LCM of 1688 and 1694 is 1429736.
2. What are the Factors of 1688?
Answer: Factors of 1688 are 1, 2, 4, 8, 211, 422, 844, 1688. There are 8 integers that are factors of 1688. The greatest factor of 1688 is 1688.
3. What are the Factors of 1694?
Answer: Factors of 1694 are 1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694. There are 12 integers that are factors of 1694. The greatest factor of 1694 is 1694.
4. How to Find the LCM of 1688 and 1694?
Answer:
Least Common Multiple of 1688 and 1694 = 1429736
Step 1: Find the prime factorization of 1688
1688 = 2 x 2 x 2 x 211
Step 2: Find the prime factorization of 1694
1694 = 2 x 7 x 11 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1429736 = 2 x 2 x 2 x 7 x 11 x 11 x 211
Step 4: Therefore, the least common multiple of 1688 and 1694 is 1429736.