LCM for 8, 12 and 28
"Least Common Multiple of 3 Numbers" Calculator
What's the Least Common Multiple (LCM) of 8, 12 and 28?
Answer
LCM of 8, 12 and 28 is
168
First common multiples: 168, 336, 504, …
168 is divisible by all three: 168 ÷ 8 = 21, 168 ÷ 12 = 14, 168 ÷ 28 = 6 — and 21, 14 and 6 have no factor but 1 common to all of them, so no smaller number is. As a common denominator: multiply the top and bottom of x/8 by 21 and of y/12 by 14 and of z/28 by 6.
8 = 23
12 = 22 × 3
28 = 22 × 7
| Prime | 8 | 12 | 28 | Highest power |
|---|---|---|---|---|
| 2 | 23 | 22 | 22 | 23 |
| 3 | — | 3 | — | 3 |
| 7 | — | — | 7 | 7 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 23 × 3 × 7 = 168
More with these numbers
Found an error in the calculation or the information?
Related Calculations
See Also
- Greatest Common Factor of 3 Numbers - Find the Greatest Common Factor (GCF) of three numbers
- Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
Share This Calculation
Print
<a href="https://calculat.io/en/number/least-common-multiple-lcm-of-3-numbers/8--12--28">What is the LCM of 8, 12 and 28? - Calculatio</a>Facebook
Twitter
Telegram
WhatsApp
Viber
Email
