LCM of 22 and 30
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
It is easy to find the LCM of 22 and 30 with the help of the handy LCM Calculator. You have to enter 44, and 60 as inputs to avail the LCM 330 as output. Here you can check the answer for Find the LCM of 22 and 30.
What is LCM of 22 and 30
Given Numbers are 22, 30
We can find the LCM of 22, 30 using the brute force method, prime factorization method, or GCD method.
To use brute force method, list the multiples of 22 and 30
Multiples of 22 =22,44,66,88,110,132,154,176,198,220,242,264,286,308,330,352,374,
Multiples of 30 =30,60,90,120,150,180,210,240,270,300,330,360,390,420,450,480,510,
Now, get the least common multiple of 22, 30 which is 330
So, the LCM of 22, 30 is 330.
Least Common Multiple (LCM) of 22 and 30 with the help of Prime Factorisation
One method for determining the LCM of 22 and 30 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 22's prime factorization:
| 2 | 22 |
| 11 | 11 |
| 1 |
Prime factors of 22 are 2,11.
22 = 21×111
And this is 30's prime factorization:
| 2 | 30 |
| 3 | 15 |
| 5 | 5 |
| 1 |
Prime factors of 30 are 2, 3,5.
30 = 21×31×51
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: 2,11, 3,5
.21×31×51×111 = 330
This shows that the LCM of 22 and 30 is 330.
How to Calculate the LCM of 22 and 30 Using Common Multiples
The first step in determining the Least Common Multiple of 22 and 30 is to generate a list of multiples for each number.
Lets look at the multiples of these two numbers, 22 and 30:
Lets look at the first ten multiples of these numbers, 22 and 30:
22,44,66,88,110,132,154,176,198,374 are the first ten multiples of 22.
30,60,90,120,150,180,210,240,270,510 are the first ten multiples of 30.
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 22 and 30, for example, are 264, 374, and 480. 330 is the least common multiple since it is the smallest.
22 and 30 have an LCM of 330.
Least Common Multiple of 22 and 30 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 22 and 30, than apply into the LCM equation.
GCF(22,30) = 2
LCM(22,30) = ( 22 × 30) / 2
LCM(22,30) = 660 / 2
LCM(22,30) = 330
Related Least Common Multiples of 22
Related Least Common Multiples of 30
Frequently Asked Questions on LCM of 22 and 30
1. What is the LCM of 22 and 30?
The LCM of 22 and 30 is 330.
2. How to find the lowest common multiple of 22 and 30?
To find the lowest common multiple of 22 and 30, we have to get the multip;es of both numbers and identify the least common multiple in them which is 330.
3. What are the Factors of 22?
Answer: Factors of 22 are 1, 2, 11, 22. There are 4 integers that are factors of 22. The greatest factor of 22 is 22.
4. 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.
5. How to Find the LCM of 22 and 30?Answer:
Least Common Multiple of 22 and 30 = 330
Step 1: Find the prime factorization of 22
22 = 2 x 11
Step 2: Find the prime factorization of 30
30 = 2 x 3 x 5
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 22 and 30 is 330.