A simple number theory problem

The media is abuzz with the news of the Abel Prize to Sir Andrew Wiles for his stunning proof of Fermat’s Last Theorem. if you are also passionate about Number Theory, here’s an appetizer for you:


How many 7-digit numbers that do not start with nor end with 1 are there?

More later,

Please send your solutions, comments, questions.

Nalin Pithwa

2 thoughts on “A simple number theory problem

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.