All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info
Home > Numbers
Problems dealing with numbers, digits, and such other purely abstract rubbish.
Sub-Categories (All Problem Categories)
> Sequences (1)
Difficulty: 2 of 5 Latest: Why is it D2?
Find the smallest positive integer fitting the following description:

i. All its digits, except two, are sixes.
ii. It is prime.

Why is this puzzle D2?

(No Solution Yet, 4 Comments) Submitted on 2017-03-27 by Ady TZIDON   
Page 1 of 94   next >>    
Difficulty: 3 of 5Power partition procedure |
Posted on 2017-03-26 by Ady TZIDON (Solution Posted, 5 Comments)
Difficulty: 4 of 51 is one of them |
Posted on 2017-03-25 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5True for nine and up |
Posted on 2017-03-24 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Up and up | Rating: 5.00
Posted on 2017-03-22 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 4 of 5A rare palindrome |
Posted on 2017-03-18 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 4 of 5Primes and factors |
Posted on 2017-03-17 by Ady TZIDON (Solution Posted, 2 Comments)
Difficulty: 3 of 5Equality? Yes, but not exactly... |
Posted on 2017-03-14 by Ady TZIDON (Solution Posted, 1 Comments)
Difficulty: 3 of 5Kissing Cousins |
Posted on 2017-03-02 by broll (Solution Posted, 1 Comments)
Difficulty: 4 of 5Never a square |
Posted on 2017-02-26 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 3 of 5Square expressions |
Posted on 2017-02-18 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5S.O.S. is not a prime |
Posted on 2017-02-15 by Ady TZIDON (No Solution Yet, 0 Comments)
Difficulty: 2 of 5Integer couples |
Posted on 2017-02-06 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Multiples with 3 | Rating: 5.00
Posted on 2017-01-31 by Brian Smith (No Solution Yet, 3 Comments)
Difficulty: 4 of 5A false conjecture |
Posted on 2017-01-27 by Ady TZIDON (Solution Posted, 7 Comments)
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information