Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7683 and 7689 the smallest integer that is 19691529 that is divisible by both numbers.
Least Common Multiple (LCM) of 7683 and 7689 is 19691529.
LCM(7683,7689) = 19691529
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 7683 and 7689. First we will calculate the prime factors of 7683 and 7689.
Prime Factorization of 7683
3 | 7683 |
13 | 2561 |
197 | 197 |
1 |
Prime factors of 7683 are 3, 13,197. Prime factorization of 7683 in exponential form is:
7683 = 31×131×1971
Prime Factorization of 7689
3 | 7689 |
11 | 2563 |
233 | 233 |
1 |
Prime factors of 7689 are 3, 11,233. Prime factorization of 7689 in exponential form is:
7689 = 31×111×2331
Now multiplying the highest exponent prime factors to calculate the LCM of 7683 and 7689.
LCM(7683,7689) = 31×111×131×1971×2331
LCM(7683,7689) = 19691529
Factors of 7683
List of positive integer factors of 7683 that divides 7683 without a remainder.
1, 3, 13, 39, 197, 591, 2561, 7683
Factors of 7689
List of positive integer factors of 7689 that divides 7689 without a remainder.
1, 3, 11, 33, 233, 699, 2563, 7689
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7683 and 7689, than apply into the LCM equation.
GCF(7683,7689) = 3
LCM(7683,7689) = ( 7683 × 7689) / 3
LCM(7683,7689) = 59074587 / 3
LCM(7683,7689) = 19691529
(i) The LCM of 7689 and 7683 is associative
LCM of 7683 and 7689 = LCM of 7689 and 7683
1. What is the LCM of 7683 and 7689?
Answer: LCM of 7683 and 7689 is 19691529.
2. What are the Factors of 7683?
Answer: Factors of 7683 are 1, 3, 13, 39, 197, 591, 2561, 7683. There are 8 integers that are factors of 7683. The greatest factor of 7683 is 7683.
3. What are the Factors of 7689?
Answer: Factors of 7689 are 1, 3, 11, 33, 233, 699, 2563, 7689. There are 8 integers that are factors of 7689. The greatest factor of 7689 is 7689.
4. How to Find the LCM of 7683 and 7689?
Answer:
Least Common Multiple of 7683 and 7689 = 19691529
Step 1: Find the prime factorization of 7683
7683 = 3 x 13 x 197
Step 2: Find the prime factorization of 7689
7689 = 3 x 11 x 233
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 19691529 = 3 x 11 x 13 x 197 x 233
Step 4: Therefore, the least common multiple of 7683 and 7689 is 19691529.