Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 321 and 324 the smallest integer that is 34668 that is divisible by both numbers.
Least Common Multiple (LCM) of 321 and 324 is 34668.
LCM(321,324) = 34668
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 321 and 324. First we will calculate the prime factors of 321 and 324.
Prime Factorization of 321
3 | 321 |
107 | 107 |
1 |
Prime factors of 321 are 3,107. Prime factorization of 321 in exponential form is:
321 = 31×1071
Prime Factorization of 324
2 | 324 |
2 | 162 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 324 are 2,3. Prime factorization of 324 in exponential form is:
324 = 22×34
Now multiplying the highest exponent prime factors to calculate the LCM of 321 and 324.
LCM(321,324) = 22×34×1071
LCM(321,324) = 34668
Factors of 321
List of positive integer factors of 321 that divides 321 without a remainder.
1, 3, 107, 321
Factors of 324
List of positive integer factors of 324 that divides 324 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 321 and 324, than apply into the LCM equation.
GCF(321,324) = 3
LCM(321,324) = ( 321 × 324) / 3
LCM(321,324) = 104004 / 3
LCM(321,324) = 34668
(i) The LCM of 324 and 321 is associative
LCM of 321 and 324 = LCM of 324 and 321
1. What is the LCM of 321 and 324?
Answer: LCM of 321 and 324 is 34668.
2. What are the Factors of 321?
Answer: Factors of 321 are 1, 3, 107, 321. There are 4 integers that are factors of 321. The greatest factor of 321 is 321.
3. What are the Factors of 324?
Answer: Factors of 324 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324. There are 15 integers that are factors of 324. The greatest factor of 324 is 324.
4. How to Find the LCM of 321 and 324?
Answer:
Least Common Multiple of 321 and 324 = 34668
Step 1: Find the prime factorization of 321
321 = 3 x 107
Step 2: Find the prime factorization of 324
324 = 2 x 2 x 3 x 3 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 34668 = 2 x 2 x 3 x 3 x 3 x 3 x 107
Step 4: Therefore, the least common multiple of 321 and 324 is 34668.