All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
Semiprime Names (Posted on 2010-12-06) Difficulty: 3 of 5
Six is a semiprime (the product of two primes). Its name, written in English, has 3 letters and 3 is one of the two primes that produce 6.

What 2-digit semiprime is like that?

What is the smallest such 3-digit semiprime?

What is the smallest such 4-digit semiprime?

Consider two cases for each:

  • Use the word "and" in all numbers such as "one-hundred and one".
  • Don't use the word "and" in those numbers.

In any event, don't use locutions such as "nineteen hundred"; rather, use "one thousand nine hundred" for this example.

See The Solution Submitted by Charlie    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
solutionDej Mar2010-12-07 06:30:47
Some Thoughts1st couple -partial spoilerAdy TZIDON2010-12-06 14:46:21
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information