Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 678 and 683 the smallest integer that is 463074 that is divisible by both numbers.
Least Common Multiple (LCM) of 678 and 683 is 463074.
LCM(678,683) = 463074
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 678 and 683. First we will calculate the prime factors of 678 and 683.
Prime Factorization of 678
2 | 678 |
3 | 339 |
113 | 113 |
1 |
Prime factors of 678 are 2, 3,113. Prime factorization of 678 in exponential form is:
678 = 21×31×1131
Prime Factorization of 683
683 | 683 |
1 |
Prime factors of 683 are 683. Prime factorization of 683 in exponential form is:
683 = 6831
Now multiplying the highest exponent prime factors to calculate the LCM of 678 and 683.
LCM(678,683) = 21×31×1131×6831
LCM(678,683) = 463074
Factors of 678
List of positive integer factors of 678 that divides 678 without a remainder.
1, 2, 3, 6, 113, 226, 339, 678
Factors of 683
List of positive integer factors of 683 that divides 683 without a remainder.
1, 683
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 678 and 683, than apply into the LCM equation.
GCF(678,683) = 1
LCM(678,683) = ( 678 × 683) / 1
LCM(678,683) = 463074 / 1
LCM(678,683) = 463074
(i) The LCM of 683 and 678 is associative
LCM of 678 and 683 = LCM of 683 and 678
1. What is the LCM of 678 and 683?
Answer: LCM of 678 and 683 is 463074.
2. What are the Factors of 678?
Answer: Factors of 678 are 1, 2, 3, 6, 113, 226, 339, 678. There are 8 integers that are factors of 678. The greatest factor of 678 is 678.
3. What are the Factors of 683?
Answer: Factors of 683 are 1, 683. There are 2 integers that are factors of 683. The greatest factor of 683 is 683.
4. How to Find the LCM of 678 and 683?
Answer:
Least Common Multiple of 678 and 683 = 463074
Step 1: Find the prime factorization of 678
678 = 2 x 3 x 113
Step 2: Find the prime factorization of 683
683 = 683
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 463074 = 2 x 3 x 113 x 683
Step 4: Therefore, the least common multiple of 678 and 683 is 463074.