LCM for 2 and 18

"Least Common Multiple" Calculator

Least Common Multiple of

and

What's the Least Common Multiple (LCM) of 2 and 18?

Answer

LCM of 2 and 18 is 18

(Eighteen)

Finding LCM for 2 and 18 using GCF of these numbers

The first method to find LCM for numbers 2 and 18 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 2 and 18 is 2, so

LCM = (2 × 18) ÷ 2

LCM = 36 ÷ 2

LCM = 18

Finding LCM for 2 and 18 by Listing Multiples

The second method to find LCM for numbers 2 and 18 is to list out the common multiples for both numbers and pick the first one that matches:

Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22

Multiples of 18: 18, 36, 54

So the LCM for 2 and 18 is 18

Finding LCM for 2 and 18 by Prime Factorization

Another method to find LCM for numbers 2 and 18 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 2: 2 (exponent form: 21)

All Prime Factors of 18: 2, 3, 3 (exponent form: 21, 32)

21 × 32 = 18

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About "Least Common Multiple" Calculator

This calculator will help you find the Least Common Multiple (LCM) of two numbers. For example, it can help you find out what's the Least Common Multiple (LCM) of 2 and 18? (The answer is: 18). Select the first number (e.g. '2') and the second number (e.g. '18'). After that hit the 'Calculate' button.
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers

"Least Common Multiple" Calculator

Least Common Multiple of

and

LCM Table

Number 1 Number 2 LCM
1 18 18
2 18 18
3 18 18
4 18 36
5 18 90
6 18 18
7 18 126
8 18 72
9 18 18
10 18 90
11 18 198
12 18 36
13 18 234
14 18 126
15 18 90
16 18 144
17 18 306
18 18 18
19 18 342
20 18 180
21 18 126
22 18 198
23 18 414
24 18 72
25 18 450
26 18 234
27 18 54
28 18 252
29 18 522
30 18 90

FAQ

What's the Least Common Multiple (LCM) of 2 and 18?
LCM of 2 and 18 is 18

How to find the LCM of 2 and 18 using prime factorization?
To find the LCM of 2 and 18, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 18.

What is the difference between LCM and GCF?
LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 2 and 18: LCM = 18, GCF = 2.

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