LCM for 20, 24 and 25
"Least Common Multiple of 3 Numbers" Calculator
What's the Least Common Multiple (LCM) of 20, 24 and 25?
Answer
LCM of 20, 24 and 25 is
600
First common multiples: 600; 1,200; 1,800; …
600 is divisible by all three: 600 ÷ 20 = 30, 600 ÷ 24 = 25, 600 ÷ 25 = 24 — and 30, 25 and 24 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/20 by 30 and of y/24 by 25 and of z/25 by 24.
20 = 22 × 5
24 = 23 × 3
25 = 52
| Prime | 20 | 24 | 25 | Highest power |
|---|---|---|---|---|
| 2 | 22 | 23 | — | 23 |
| 3 | — | 3 | — | 3 |
| 5 | 5 | — | 52 | 52 |
— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.
LCM = 23 × 3 × 52 = 600
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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
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LCM Table
| 1st | 2nd | 3rd | LCM |
|---|---|---|---|
| 10 | 20 | 24 | 120 |
| 11 | 20 | 24 | 1,320 |
| 12 | 20 | 24 | 120 |
| 13 | 20 | 24 | 1,560 |
| 14 | 20 | 24 | 840 |
| 15 | 20 | 24 | 120 |
| 16 | 20 | 24 | 240 |
| 17 | 20 | 24 | 2,040 |
| 18 | 20 | 24 | 360 |
| 19 | 20 | 24 | 2,280 |
| 20 | 20 | 24 | 120 |
| 20 | 21 | 24 | 840 |
| 20 | 22 | 24 | 1,320 |
| 20 | 23 | 24 | 2,760 |
| 20 | 24 | 24 | 120 |
| 20 | 24 | 25 | 600 |
| 20 | 24 | 26 | 1,560 |
| 20 | 24 | 27 | 1,080 |
| 20 | 24 | 28 | 840 |
| 20 | 24 | 29 | 3,480 |
| 20 | 24 | 30 | 120 |
| 20 | 24 | 31 | 3,720 |
| 20 | 24 | 32 | 480 |
| 20 | 24 | 33 | 1,320 |
| 20 | 24 | 34 | 2,040 |
| 20 | 24 | 35 | 840 |
| 20 | 24 | 36 | 360 |
| 20 | 24 | 37 | 4,440 |
| 20 | 24 | 38 | 2,280 |
| 20 | 24 | 39 | 1,560 |