Conundrums pay tribute to a singular digit – number 7
The required series of six primes in arithmetical progression is 7, 37, 67, 97, 127 and 157.
In the second problem, the skeletal sum reconstructs to form

This is the only fraction of this type known to established theory to equal one-seventh.
Try more puzzlers >>
Go to the home page >>
Email Alerts
Register now to receive ComputerWeekly.com IT-related news, guides and more, delivered to your inbox.
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States.
Privacy
Read More
-
Related content from ComputerWeekly.com
-
RELATED CONTENT FROM THE TECHTARGET NETWORK
This was first published in May 2009