Math Is Fun Forum
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
#1 2005-07-03 05:11:16
- archie
- Member
- Registered: 2005-07-03
- Posts: 2
Prime number difficulty
I was wondering if anyone could assist me in this problem.
what is the smallest 5-digit prime number whose digits are all unique?
Your help is greatly appreciated 
Offline
#2 2005-07-03 05:17:18
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Prime number difficulty
You're in luck!
Thanks to:
http://www.mathsisfun.com/forum/viewtopic.php?id=964
I recently made a prime number thingy on Excel, so I can now quickly check and tell you that the answer is...
10243.
Why did the vector cross the road?
It wanted to be normal.
Offline
Pages: 1