LCM of 42 and 50
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
It is easy to find the LCM of 42 and 50 with the help of the handy LCM Calculator. You have to enter 44, and 60 as inputs to avail the LCM 1050 as output. Here you can check the answer for Find the LCM of 42 and 50.
What is LCM of 42 and 50
Given Numbers are 42, 50
We can find the LCM of 42, 50 using the brute force method, prime factorization method, or GCD method.
To use brute force method, list the multiples of 42 and 50
Multiples of 42 =42,84,126,168,210,252,294,336,378,420,462,504,546,588,630,672,714,
Multiples of 50 =50,100,150,200,250,300,350,400,450,500,550,600,650,700,750,800,850,
Now, get the least common multiple of 42, 50 which is 1050
So, the LCM of 42, 50 is 1050.
Least Common Multiple (LCM) of 42 and 50 with the help of Prime Factorisation
One method for determining the LCM of 42 and 50 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 42's prime factorization:
| 2 | 42 |
| 3 | 21 |
| 7 | 7 |
| 1 |
Prime factors of 42 are 2, 3,7.
42 = 21×31×71
And this is 50's prime factorization:
| 2 | 50 |
| 5 | 25 |
| 5 | 5 |
| 1 |
Prime factors of 50 are 2,5.
50 = 21×52
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, 3,7,5
.21×31×52×71 = 1050
This shows that the LCM of 42 and 50 is 1050.
How to Calculate the LCM of 42 and 50 Using Common Multiples
The first step in determining the Least Common Multiple of 42 and 50 is to generate a list of multiples for each number.
Lets look at the multiples of these two numbers, 42 and 50:
Lets look at the first ten multiples of these numbers, 42 and 50:
42,84,126,168,210,252,294,336,378,714 are the first ten multiples of 42.
50,100,150,200,250,300,350,400,450,850 are the first ten multiples of 50.
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 42 and 50, for example, are 504, 714, and 800. 1050 is the least common multiple since it is the smallest.
42 and 50 have an LCM of 1050.
Least Common Multiple of 42 and 50 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42 and 50, than apply into the LCM equation.
GCF(42,50) = 2
LCM(42,50) = ( 42 × 50) / 2
LCM(42,50) = 2100 / 2
LCM(42,50) = 1050
Related Least Common Multiples of 42
Related Least Common Multiples of 50
Frequently Asked Questions on LCM of 42 and 50
1. What is the LCM of 42 and 50?
The LCM of 42 and 50 is 1050.
2. How to find the lowest common multiple of 42 and 50?
To find the lowest common multiple of 42 and 50, we have to get the multip;es of both numbers and identify the least common multiple in them which is 1050.
3. What are the Factors of 42?
Answer: Factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42. There are 8 integers that are factors of 42. The greatest factor of 42 is 42.
4. What are the Factors of 50?
Answer: Factors of 50 are 1, 2, 5, 10, 25, 50. There are 6 integers that are factors of 50. The greatest factor of 50 is 50.
5. How to Find the LCM of 42 and 50?Answer:
Least Common Multiple of 42 and 50 = 1050
Step 1: Find the prime factorization of 42
42 = 2 x 3 x 7
Step 2: Find the prime factorization of 50
50 = 2 x 5 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 = 1050 = 2 x 3 x 5 x 5 x 7
Step 4: Therefore, the least common multiple of 42 and 50 is 1050.