Please do all the numbers:

1. Find the greatest number of 6 digits exactly divisible by 24, 15 and 36.

2. Prove that  2 + 3  is irrational. 
3. If the HCF of 78  and 143 is expressible is the form 78m -143, then find the value of m. 

Dear Student,

The solutions to your 1st and 2nd query has been provided below:

Q 1. 



Q 2. 



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