Find all Perfect numbers which are sum of consecutive prime number.For ex . we can write $28$ as :$$28 = 2+3+5+7+11$$
Are there any more examples possible ? If yes , what is the general condition to find such numbers ?
How to find $\lim_{h\rightarrow 0}\frac{\sin(ha)}{h}$ without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
No comments:
Post a Comment