## 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?)

Entry filed under: Uncategorized. Tags: 2011, consecutive, number, prime.

1.Veky | January 5, 2011 at 3:05 amEven 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 […]