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Home >> L.C.M >> Examples

## Least Common Multiple (LCM) : Solved Examples

 Prime Factorisation Method Division Method

 Find a three digit number which is exactly divisible by 4, 8 & 12 First find the LCM of given numbers 4, 8 & 12 and we get LCM of 4, 8 & 12 = 24 Here we can see that 24 is a two digit number but we need to find a three digit number so we will find multiple of 24, as shown below: 24 X 2 = 48 24 X 3 = 72 24 & 4 = 96 24 X 5 = 120 Therefore, 120 is the smallest three digit number which is divisible by 4, 8 & 12.

### Related Question Examples

 Three persons started walking together from a same point. Length of their steps is 20 m, 25 m & 30 m. Find the minimum distance after which each meet other again after walking from same starting point. Find the least number which when divided by 12 & 18 leaves remainder 10 in each case. Find a three digit number which is exactly divisible by 4, 8 & 12 Three electric bulbs blink after every 3 sec, 6 sec & 9 sec respectively. If all are switch on simultaneously. Find at what time; all will simultaneously blink again ? Find the least number which is exactly divisible by 16, 24 & 12.

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