2011!
Remarkably, 2011 is the sum of 11 consecutive prime numbers!
2011 = 157 + 163 + 173 + 179 + 181 + 191 + 193 + 197 + 199 + 211
And of course 2011 is itself a prime number!
What a great prospect for a prime year — our very best wishes to you.
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Jan said,
August 2, 2011 at 6:16 am
How is this possible?
the string (157 + 163 + 173 + 179 + 181 + 191 + 193 + 197 + 199 + 211) equals 1844 but not 2011.
A number is missing here, which is not a prime number, but a happy number:
http://en.wikipedia.org/wiki/Happy_number
cheers
strauss said,
August 2, 2011 at 8:20 am
Thanks for catching that! You mean not only a prime but also a happy number, I think. And it just looks cool