Re: Some question in prime number!



On Mar 1, 12:22 am, quasi <qu...@xxxxxxxx> wrote:

But 11 is the sum of 3 distinct primes.

Actually, no. If an odd number is the sum of three distinct primes, 2
is not one of them. And the sum of the three smallest primes is 3+5+7
= 15.

17 is not the the sum of three distinct primes either: 3 must be one
of them, as 5+7+11 = 23 > 17. But 17-3 = 14 can only be written as the
sum of two distinct primes in one way: 3+11, where we have used the
term 3 once again.

---
J K Haugland
http://home.no.net/zamunda

.



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