Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 675 and 678 the smallest integer that is 152550 that is divisible by both numbers.
Least Common Multiple (LCM) of 675 and 678 is 152550.
LCM(675,678) = 152550
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 675 and 678. First we will calculate the prime factors of 675 and 678.
Prime Factorization of 675
3 | 675 |
3 | 225 |
3 | 75 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 675 are 3,5. Prime factorization of 675 in exponential form is:
675 = 33×52
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
Now multiplying the highest exponent prime factors to calculate the LCM of 675 and 678.
LCM(675,678) = 21×33×52×1131
LCM(675,678) = 152550
Factors of 675
List of positive integer factors of 675 that divides 675 without a remainder.
1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675
Factors of 678
List of positive integer factors of 678 that divides 678 without a remainder.
1, 2, 3, 6, 113, 226, 339, 678
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 675 and 678, than apply into the LCM equation.
GCF(675,678) = 3
LCM(675,678) = ( 675 × 678) / 3
LCM(675,678) = 457650 / 3
LCM(675,678) = 152550
(i) The LCM of 678 and 675 is associative
LCM of 675 and 678 = LCM of 678 and 675
1. What is the LCM of 675 and 678?
Answer: LCM of 675 and 678 is 152550.
2. What are the Factors of 675?
Answer: Factors of 675 are 1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675. There are 12 integers that are factors of 675. The greatest factor of 675 is 675.
3. 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.
4. How to Find the LCM of 675 and 678?
Answer:
Least Common Multiple of 675 and 678 = 152550
Step 1: Find the prime factorization of 675
675 = 3 x 3 x 3 x 5 x 5
Step 2: Find the prime factorization of 678
678 = 2 x 3 x 113
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 152550 = 2 x 3 x 3 x 3 x 5 x 5 x 113
Step 4: Therefore, the least common multiple of 675 and 678 is 152550.