LCM of 8, 12 and 16 is 48. The smallest number among all common multiples of 8, 12, and 16 is the LCM of 8, 12, and 16. The first few multiples of 8, 12, and 16 are (8, 16, 24, 32, 40, etc. ), (12, 24, 36, 48, 60, etc.) and (16, 32, 48, 64, 80, etc.). In Maths, the LCM of any two numbers is the value which is evenly divisible by the given two numbers. The LCM can be found easily by using various methods like prime factorisation, division and by listing the multiples.
Also read: Least common multiple
What is LCM of 8, 12 and 16?
The answer to this question is 48. The LCM of 8, 12 and 16 using various methods is shown in this article for your reference. The LCM of two non-zero integers, 8, 12 and 16, is the smallest positive integer 48 which is divisible by both 8, 12 and 16 with no remainder.
How to Find LCM of 8, 12 and 16?
LCM of 8, 12 and 16 can be found using three methods:
- Prime Factorisation
- Division method
- Listing the multiples
LCM of 8, 12 and 16 Using Prime Factorisation Method
The prime factorisation of 8, 12 and 16, respectively, is given by:
8 = (2 × 2 × 2) = 23,
12 = (2 × 2 × 3) = 22 × 31, and
16 = (2 × 2 × 2 × 2) = 24
LCM (8, 12, 16) = 48
LCM of 8, 12 and 16 Using Division Method
We’ll divide the numbers (8, 12, 16) by their prime factors to get the LCM of 8, 12 and 16 using the division method (preferably common). The LCM of 8, 12 and 16 is calculated by multiplying these divisors.
| 2 | 8 | 12 | 16 |
| 2 | 4 | 6 | 8 |
| 2 | 2 | 3 | 4 |
| 2 | 1 | 3 | 2 |
| 3 | 1 | 3 | 1 |
| x | 1 | 1 | 1 |
No further division can be done.
Hence, LCM (8, 12, 16) = 48
LCM of 8, 12 and 16 Using Listing the Multiples
To calculate the LCM of 8, 12 and 16 by listing out the common multiples, list the multiples as shown below
| Multiples of 8 | Multiples of 12 | Multiples of 16 |
| 8 | 12 | 16 |
| 16 | 24 | 32 |
| 24 | 36 | 48 |
| 32 | 48 | 64 |
| 40 | 60 | 80 |
| 48 | 72 | 96 |
The smallest common multiple of 8, 12 and 16 is 48.
Therefore LCM (8, 12, 16) = 48
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LCM of 8, 12 and 16 Solved Example
Question: Find the smallest number that is divisible by 8, 12, 16 exactly.
Solution:
The smallest number that is divisible by 8, 12, and 16 exactly is their LCM.
⇒ Multiples of 8, 12, and 16:
Multiples of 8 = 8, 16, 24, 32, 40, 48, 56, . . . .
Multiples of 12 = 12, 24, 36, 48, 60, 72, 84, . . . .
Multiples of 16 = 16, 32, 48, 64, 80, 96, 112, . . . .
Therefore, the LCM of 8, 12, and 16 is 48.
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