As level maths q help

Proof by contradiction
Got any ideas of numbers that might work (hint: the easiest one to spot is related to the numbers in the equation)

I'm not sure, I know that they are prime but what. umbers should I use in particular?

Okay, you know they are all prime and you have to find a number for n, which you can then square, multiply by something and then add a prime number to.

The thing you have to make sure of is that your answer is a multiple of 1601 (multiplying and squaring means the number won't be prime, so you don't have to worry about that)

Hence what value of n (the simplest value) is a multiple of 1601? –not a trick question!

I understand now, thanks a lot, I subbed in 1601 as n so the product of the equation isn't prime and I believe 1523 and 1601 are the factors