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[ April 2, 2000 ]
The sum of the first 202 composite numbers is 27072.
[G. L. Honaker, Jr. - A053779]
Note the sequence starts : 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + ...
The number 1 is considered as the unit, so it's neither composite nor prime !
Visit also Carlos Rivera's Puzzle 89 and try to find that elusive palprime.


 Jeff Heleen  pushed this topic skyhigh and found the following two record palsums :

The sum of the first 6249167674 composite numbers is 20500472188127400502.
It is the 32nd (and now the largest known) such palindrome !
The sequence : 4 + 6 + 8 + 9 + 10 + ... + 6553235945

The sum of the first 2822581688 odd composite numbers is 8806146443446416088.
The sequence : 9 + 15 + ... + 6224149881


All this data finally got compiled at the following page :
Sum of the first n 'type of numbers' is palindromic

A000073 Prime Curios! Prime Puzzle
Wikipedia 73 Le Nombre 73 Numberland 73














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