Last updated on May 26th, 2025
The smallest number that should also be a positive number, and evenly divide both the numbers, is known as the least common factor. LCM is very important for solving problems, especially fractions, scheduling events etc.
The LCM of 3 and 10 is the lowest number that divides both 3 and 10 without leaving any remainder. The LCM of 3 and 10 is 30.
The LCM of 3 and 10 can be found by the following methods like division method, listing multiples, prime factorization.
In the division method, we divide both the numbers by the lowest possible number until we get 1 for both numbers.
3 divides 3 leaving 1
2 divides 10 leaving 5
5 divides 5 leaving 1
LCM = 2 × 3 × 5= 30.
We write the multiples of both numbers till we find the common one.
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30…
Multiples of 10: 10, 20, 30…
The common multiple is 30. So, the LCM of 3 and 10 is 30.
We part each number into divisors and select the highest powers of all the prime factors.
3= 3
10= 2 × 5
LCM = 2 × 3 × 5= 30.
While solving problems on LCM, children are likely to make common mistakes, here are a few mistakes and how to avoid them
Find the LCM of 3 and 10.
Thus, the LCM of 3 and 10is 30.
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30…
Multiples of 10: 10, 20, 30…
The common multiple is 30. So, the LCM of 3 and 10 is 30.
Thus, the LCM of 3 and 10is 30.
Solve the following expression using LCM of 3 and 10: 1/3 + 1/10
The sum of 1/3 and 1/10 is 13/30
LCM(9,10)=90
1/3 = 10/30 , 1/10=3/30
Add the fractions:
10/30 + 3/30 = 13/30
The sum of 13 and 110 is 1330.
Simplify the expression: x/3 + x/10 = 13
The LCM of 3 and 10 is 30 based on their prime factors 2,3, and 5.
LCM (3,10) =30
10x/30 + 3x/30 =13
10x+3x/30=13
13x= 13 × 30
13x = 390
x=30.
The LCM of 3 and 10 is 30 based on their prime factors 2,3, and 5.
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.
: She loves to read number jokes and games.