perplexus.info :: Numbers

Home > Numbers

Problems dealing with numbers, digits, and such other purely abstract rubbish.

Latest: A Sixth Root Quickie

Without using a calculator, determine the positive integer value of x that satisfy this equation:

x⁶ = 244140625

Submitted on 2024-11-28 by K Sengupta

Page 75 of 167

<< prev next >>

Multiples with 3 | Rating: 5.00
Posted on 2017-01-31 by Brian Smith (No Solution Yet, 3 Comments)

A false conjecture |
Posted on 2017-01-27 by Ady TZIDON (Solution Posted, 7 Comments)

1,3,8 ...extend! | Rating: 5.00
Posted on 2017-01-26 by Ady TZIDON (No Solution Yet, 4 Comments)

Six (or more) sextuples |
Posted on 2017-01-20 by Ady TZIDON (No Solution Yet, 1 Comments)

An interesting recurrence | Rating: 5.00
Posted on 2017-01-17 by Math Man (Solution Posted, 5 Comments)

Age Progression |
Posted on 2017-01-16 by Brian Smith (No Solution Yet, 3 Comments)

Square OR 2*square |
Posted on 2017-01-14 by Ady TZIDON (No Solution Yet, 2 Comments)

Which is the biggest? |
Posted on 2017-01-02 by Ady TZIDON (No Solution Yet, 2 Comments)

Skill or food? |
Posted on 2016-12-28 by Ady TZIDON (No Solution Yet, 5 Comments)

As EZ as UC it | Rating: 4.00
Posted on 2016-12-26 by Ady TZIDON (No Solution Yet, 3 Comments)

No change in its value |
Posted on 2016-12-23 by Ady TZIDON (No Solution Yet, 1 Comments)

Decimal and Binary Representation |
Posted on 2016-12-13 by Brian Smith (No Solution Yet, 3 Comments)

Four integers |
Posted on 2016-12-04 by Ady TZIDON (No Solution Yet, 8 Comments)

Prime repunits | Rating: 3.50
Posted on 2016-11-24 by Ady TZIDON (No Solution Yet, 6 Comments)

At least twice |
Posted on 2016-11-17 by Ady TZIDON (Solution Posted, 5 Comments)

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (19)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info