Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 30 and 33 the smallest integer that is 330 that is divisible by both numbers.
Least Common Multiple (LCM) of 30 and 33 is 330.
LCM(30,33) = 330
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 30 and 33. First we will calculate the prime factors of 30 and 33.
Prime Factorization of 30
2 | 30 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 30 are 2, 3,5. Prime factorization of 30 in exponential form is:
30 = 21×31×51
Prime Factorization of 33
3 | 33 |
11 | 11 |
1 |
Prime factors of 33 are 3,11. Prime factorization of 33 in exponential form is:
33 = 31×111
Now multiplying the highest exponent prime factors to calculate the LCM of 30 and 33.
LCM(30,33) = 21×31×51×111
LCM(30,33) = 330
Factors of 30
List of positive integer factors of 30 that divides 30 without a remainder.
1, 2, 3, 5, 6, 10, 15, 30
Factors of 33
List of positive integer factors of 33 that divides 33 without a remainder.
1, 3, 11, 33
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30 and 33, than apply into the LCM equation.
GCF(30,33) = 3
LCM(30,33) = ( 30 × 33) / 3
LCM(30,33) = 990 / 3
LCM(30,33) = 330
(i) The LCM of 33 and 30 is associative
LCM of 30 and 33 = LCM of 33 and 30
1. What is the LCM of 30 and 33?
Answer: LCM of 30 and 33 is 330.
2. What are the Factors of 30?
Answer: Factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30. There are 8 integers that are factors of 30. The greatest factor of 30 is 30.
3. What are the Factors of 33?
Answer: Factors of 33 are 1, 3, 11, 33. There are 4 integers that are factors of 33. The greatest factor of 33 is 33.
4. How to Find the LCM of 30 and 33?
Answer:
Least Common Multiple of 30 and 33 = 330
Step 1: Find the prime factorization of 30
30 = 2 x 3 x 5
Step 2: Find the prime factorization of 33
33 = 3 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 = 330 = 2 x 3 x 5 x 11
Step 4: Therefore, the least common multiple of 30 and 33 is 330.