Question

Determine the largest four digits number divisible by 18 25 and 35?

Answer 1

To find the largest number which is divisible by 18,25 and 35 , we have to find the lcm of the three numbers.

The LCM of 18,25 and 35 is

18 = 2x3x3,
25 = 5x5
and
35 = 5x7

Hence the LCM is 2x3x3x5x5x7 = 3150

So the largest four digit divisible by 18,25 and 35 is 3150

Hope it helps u

Answer 2

Hi,

Here,

We have to find the lcm of 18,25,35
= 3150

Now,

Divide the largest 4 digit number (9999) by 3150

Which gives us
Remainder = 549

Now subtract 9999 and 99
9999 - 99 = 9450

Therefore the largest 4 digit number = 9450

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