2011 is Prime Time
January 4, 2011 at 6:57 am 2 comments
It’s been eight years coming, but finally, a year that’s a prime number. This hasn’t happened since 2003, but 2011 is prime.
Express 2011 as a sum of consecutive prime numbers.
That can be done in several different ways.
As it turns out, 2011 is extra cool because it can be written as a sum of a prime number of consecutive prime numbers.
When will that happen again?
And finally…
What is the next year that will be a prime number and also be a sum of a prime number of consecutive prime numbers? (Wow, that’s a mouthful, ain’t it?)
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Entry filed under: Uncategorized. Tags: 2011, consecutive, number, prime.
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Math Jokes 4 Mathy Folks 
1.
Veky | January 5, 2011 at 3:05 am
Even more, it can be written as a sum of prime number of prime numbers in a prime number of ways ;-).
2011=157+163+167+173+179+181+191+193+197+199+211=661+673+677
Answer to your question is 2081=401+409+419+421+431.
Next year that will be writable as a sum of prime number of prime numbers in a prime number of ways is
2179=71+73+79+83+89+97+101+103+107+109+113+127+131+137+139+149+151+157+163=719+727+733.
2. Prime Time in Haskell « The Math Less Traveled | January 6, 2011 at 10:23 pm
[…] a recent blog post, Patrick Vennebush of Math Jokes 4 Mathy Folks noted that 2011 can be expressed as a sum of […]