Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 33 and 38 the smallest integer that is 1254 that is divisible by both numbers.
Least Common Multiple (LCM) of 33 and 38 is 1254.
LCM(33,38) = 1254
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 33 and 38. First we will calculate the prime factors of 33 and 38.
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
Prime Factorization of 38
2 | 38 |
19 | 19 |
1 |
Prime factors of 38 are 2,19. Prime factorization of 38 in exponential form is:
38 = 21×191
Now multiplying the highest exponent prime factors to calculate the LCM of 33 and 38.
LCM(33,38) = 21×31×111×191
LCM(33,38) = 1254
Factors of 33
List of positive integer factors of 33 that divides 33 without a remainder.
1, 3, 11, 33
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1, 2, 19, 38
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 33 and 38, than apply into the LCM equation.
GCF(33,38) = 1
LCM(33,38) = ( 33 × 38) / 1
LCM(33,38) = 1254 / 1
LCM(33,38) = 1254
(i) The LCM of 38 and 33 is associative
LCM of 33 and 38 = LCM of 38 and 33
1. What is the LCM of 33 and 38?
Answer: LCM of 33 and 38 is 1254.
2. 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.
3. What are the Factors of 38?
Answer: Factors of 38 are 1, 2, 19, 38. There are 4 integers that are factors of 38. The greatest factor of 38 is 38.
4. How to Find the LCM of 33 and 38?
Answer:
Least Common Multiple of 33 and 38 = 1254
Step 1: Find the prime factorization of 33
33 = 3 x 11
Step 2: Find the prime factorization of 38
38 = 2 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1254 = 2 x 3 x 11 x 19
Step 4: Therefore, the least common multiple of 33 and 38 is 1254.