Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**ZHero****Real Member**- Registered: 2008-06-08
- Posts: 1,889

2011 is prime number which is a sum of 11 consecutive prime numbers!

If two or more thoughts intersect, there has to be a point!

Offline

**namealreadychosen****Member**- Registered: 2011-07-23
- Posts: 16

Also, 23 is the sum of 3 consecutive primes.

If gcd(n,b)>1, there does not exist any sequence of n consecutive primes such that the last digit(s) in base b is n. Does such a sequence always exist when gcd(n,b)=1?

Offline

**Stormtangent****Member**- Registered: 2011-09-03
- Posts: 33

2011 is also the sum of three consecutive primes: 661, 673, and 677.

Furthermore, 2011= 39^2 + 17^2 + 7^2.

"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

Offline

Pages: **1**