MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Ashfaaq Mohammed Grade: 10
        
If ‘p’ is prime >= 3. What is the greatest number which will divide p^2-1?
3 years ago

Answers : (3)

Arun Kumar
IIT Delhi
askIITians Faculty
256 Points
										Hi Ashfaaq,
See if you take any no. and try to see then you will find that all unique factors are till its square root.
and lets assume here that p is greater than 6.
then its greatest factors be
if we have more information about p then we can have factors of n too.


Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty

3 years ago
Viraj C Bukitagar
42 Points
										
let p be 3
3^2-1=8
let p be 5
5^2-1=24
let p be 7
7^2-1=48
if we take hcf of the solutions 3 results
that is hcf(8,24,48)=8
therfore 8 is the highest no. divisible by p^2-1
 
still have doubt try two more casees and find hcf of all 5 numbers the result will be 8
3 years ago
Ashfaaq Mohammed
35 Points
										
@Viraj C Butkitagar: Thank you very much for your answer. I appreciate it.
3 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete AIPMT/AIIMS Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
Get extra Rs. 4,200 off
USE CODE: askSSPD20
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
Get extra Rs. 4,200 off
USE CODE: askSSPD20

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details