Question

Find the least & greatest five digits perfect square numbers which is divisible by
10,12,15,20and 25.

Answer 1

Answer:

To find the largest number, first lets find the LCM of 15, 12 and 25.

We can see that the LCM is 300.

Now, we have to find the largest 5 digit multiple of 300.

we know that 300 * 330 = 99000

300 * 333 = 99900

This is the highest 5 digit multiple of 300. Therefore, this is the largest 5 digit number exactly divisible by 15, 12 and 25