223 LearnersLast updated on May 26th, 2025
LCM of 12 and 14
The Least common multiple (LCM) is the smallest number that is divisible by the numbers 12 and 14. The LCM can be found using the listing multiples method, the prime factorization, and/or division methods. The LCM is used to find when two or more repeating events will occur together
What is the LCM of 12 and 14?
The LCM of 12 and 14 is the smallest positive integer, a multiple of both numbers. By finding the LCM, we can simplify the arithmetic operations with fractions to equate the denominators.
How to Find the LCM of 12 and 14?
There are various methods to find the LCM, Listing method, prime factorization method, and division method are explained below;
LCM of 12 and 14 using the Listing Multiples Method
The LCM of 12 and 14 can be found using the following steps:
Step1: List the multiples of each number
Multiples of 12 = 12, 24, 36, 48, 60, 72, 84, 96, 108 …
Multiples of 14 = 14, 28, 42, 56, 70, 84, 98, 112, …
Step 2: Figure the smallest multiple from the listed multiples
The smallest common multiple is 84. Thus, LCM(12, 14) = 84.
LCM of 12 and 14 using the Prime Factorization Method
The prime factors of each number are written, and then the highest power of the prime factors is multiplied to get the LCM.
Step1: Devise prime factors of the given numbers:
Prime factorization of 12 = 2 × 2 × 3 = 2² x 3
Prime factorization of 14= 2 × 7
Step 2: Pick the highest powers of each prime factor:
Factors raised to their highest power = 22 x 3 x 7
Step 3:Find the product of the highest powers to get the LCM:
LCM(12, 14) = 22 x 3 x 7 = 84.
LCM of 12 and 14 using the Division Method
This method involves dividing both numbers by their common prime factors until no further division is possible, then multiplying the divisors to get the LCM.
Step1: Write the numbers:
Step 2: Divide by common prime factors and multiply the divisors:
LCM of 12 and 14 = 2 x 2 x 3 x 7
Therefore, LCM = 84.
Common Mistakes and how to avoid them in LCM of 12 and 14
Listed below are a few commonly made mistakes while attempting to ascertain the LCM of 3 and 9, make a note while practicing.
Mistake 1
Thinking that LCM must be a multiple of largest number.
The prime factorization method or long division method must be applied to find the LCM of 12 and 14.
LCM of 12 and 14, Examples
Problem 1
LCM (a, b) = 84. If a=12, find b.
LCM (12,b) = 84
b is a divisor of 84, so we list the divisors of 84;
1,2,3,4,6,7,12,14,21,28,42,84
Explanation
For the LCM to be 90, the missing number has to be 14, the LCM (12,14) = 90.
Problem 2
The LCM of 12 and 14 is x. Find the value of x such that; x/HCF(12,14)=LCM(12,x)/HCF(x,14)
We know that;
LCM (12,14) = 84
HCF (12,14) = 2
Substituting the same in the given formula;
x/HCF(12,14)=LCM(12,x)/HCF(x,14)
84/2 = LCM(12,x)/HCF(x,14)
The same simplifies to;
42= LCM(12,x)/HCF(x,14)
For x= 14, we know that
LCM (12,14) = 84
HCF (12,14) = 14
Explanation
From the above, we can conclude that x = 14 on both sides holds true.
Problem 3
If two bus A and B arrive every 12 minutes and 14 minutes at the bus stop at the same time. In how long will they arrive together again?
The LCM of 12 and 14 = 84.
Explanation
The smallest common multiple is ascertained between the numbers to ascertain the next arrival of the trains at the same time, which is in 90 minutes.
FAQ’s on LCM of 10 and 20
1.What is the LCM of 12 and 18?
2.What is the LCM of 12 and 14?
3.What is the LCM of 12 and 24?
4. What is the LCM of 21 and 14?
5.What is the LCM 11 and 14?
6.How can children in United Arab Emirates use numbers in everyday life to understand LCM of 12 and 14?
7.What are some fun ways kids in United Arab Emirates can practice LCM of 12 and 14 with numbers?
8.What role do numbers and LCM of 12 and 14 play in helping children in United Arab Emirates develop problem-solving skills?
9.How can families in United Arab Emirates create number-rich environments to improve LCM of 12 and 14 skills?
Important glossaries for LCM of 12 and 14
- Multiple: A number and any integer multiplied.
- Prime Factor: A natural number (other than 1) that has factors that are one and itself.
- Prime Factorization: The process of breaking down a number into its prime factors is called Prime Factorization.
- Co-prime numbers: When the only positive integer that is a divisor of them both is 1, a number is co-prime.
- Relatively Prime Numbers:Numbers that have no common factors other than 1.
- Fraction: A representation of a part of a whole.
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Hiralee Lalitkumar Makwana
About the Author
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
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