LCM of 28 and 33
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
It is easy to find the LCM of 28 and 33 with the help of the handy LCM Calculator. You have to enter 44, and 60 as inputs to avail the LCM 924 as output. Here you can check the answer for Find the LCM of 28 and 33.
What is LCM of 28 and 33
Given Numbers are 28, 33
We can find the LCM of 28, 33 using the brute force method, prime factorization method, or GCD method.
To use brute force method, list the multiples of 28 and 33
Multiples of 28 =28,56,84,112,140,168,196,224,252,280,308,336,364,392,420,448,476,
Multiples of 33 =33,66,99,132,165,198,231,264,297,330,363,396,429,462,495,528,561,
Now, get the least common multiple of 28, 33 which is 924
So, the LCM of 28, 33 is 924.
Least Common Multiple (LCM) of 28 and 33 with the help of Prime Factorisation
One method for determining the LCM of 28 and 33 is to compare the prime factorization of each number. You can find the prime factorization for each number by following the instructions below:
Here is 28's prime factorization:
| 2 | 28 |
| 2 | 14 |
| 7 | 7 |
| 1 |
Prime factors of 28 are 2,7.
28 = 22×71
And this is 33's prime factorization:
| 3 | 33 |
| 11 | 11 |
| 1 |
Prime factors of 33 are 3,11.
33 = 31×111
When comparing the prime factorization of these two numbers, look for the highest power to which each prime factor is raised. In this case, the following primary factors must be considered: 2,7, 3,11
.22×31×71×111 = 924
This shows that the LCM of 28 and 33 is 924.
How to Calculate the LCM of 28 and 33 Using Common Multiples
The first step in determining the Least Common Multiple of 28 and 33 is to generate a list of multiples for each number.
Lets look at the multiples of these two numbers, 28 and 33:
Lets look at the first ten multiples of these numbers, 28 and 33:
28,56,84,112,140,168,196,224,252,476 are the first ten multiples of 28.
33,66,99,132,165,198,231,264,297,561 are the first ten multiples of 33.
You can continue to list the multiples of these numbers until you find a match. Once you have found a match, or several matches, the Least Common Multiple is the smallest of these matches. The first matching multiple(s) of 28 and 33, for example, are 336, 476, and 528. 924 is the least common multiple since it is the smallest.
28 and 33 have an LCM of 924.
Least Common Multiple of 28 and 33 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28 and 33, than apply into the LCM equation.
GCF(28,33) = 1
LCM(28,33) = ( 28 × 33) / 1
LCM(28,33) = 924 / 1
LCM(28,33) = 924
Related Least Common Multiples of 28
Related Least Common Multiples of 33
Frequently Asked Questions on LCM of 28 and 33
1. What is the LCM of 28 and 33?
The LCM of 28 and 33 is 924.
2. How to find the lowest common multiple of 28 and 33?
To find the lowest common multiple of 28 and 33, we have to get the multip;es of both numbers and identify the least common multiple in them which is 924.
3. What are the Factors of 28?
Answer: Factors of 28 are 1, 2, 4, 7, 14, 28. There are 6 integers that are factors of 28. The greatest factor of 28 is 28.
4. 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.
5. How to Find the LCM of 28 and 33?Answer:
Least Common Multiple of 28 and 33 = 924
Step 1: Find the prime factorization of 28
28 = 2 x 2 x 7
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 = 924 = 2 x 2 x 3 x 7 x 11
Step 4: Therefore, the least common multiple of 28 and 33 is 924.