LCM for 5 and 3

"Least Common Multiple" Calculator

Least Common Multiple of

and

What's the Least Common Multiple (LCM) of 5 and 3?

Answer: LCM of 5 and 3 is 15

(Fifteen)

Finding LCM for 5 and 3 using GCF's of these numbers

The first method to find LCM for numbers 5 and 3 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 5 and 3 is 1, so

LCM = (5 × 3) ÷ 1

LCM = 15 ÷ 1

LCM = 15

Finding LCM for 5 and 3 by Listing Multiples

The second method to find LCM for numbers 5 and 3 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 5: 5, 10, 15, 20, 25

Multiples of 3: 3, 6, 9, 12, 15, 18, 21

So the LCM for 5 and 3 is 15

Finding LCM for 5 and 3 by Prime Factorization

Another method to find LCM for numbers 5 and 3 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 5: 5 (exponent form: 51)

All Prime Factors of 3: 3 (exponent form: 31)

51 × 31 = 15

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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 5 and 3? (The answer is: 15). Select the first number (e.g. '5') and the second number (e.g. '3'). 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 1Number 2LCM
133
236
333
4312
5315
636
7321
8324
939
10330
11333
12312
13339
14342
15315
16348
17351
18318
19357
20360
21321
22366
23369
24324
25375
26378
27327
28384
29387
30330

FAQ

What's the Least Common Multiple (LCM) of 5 and 3?

LCM of 5 and 3 is 15

See Also