# New post in Recreational-mathematics

## What is the first 21 digit prime in consecutive digits of $e$?

August 24th, 2022

## Find a quadratic polynomial which when divided by (x-1), (x-2), (x-3) leaves remainders 11, 22, 37 respectively.

August 18th, 2022

## The hands of a clock are observed continuously from 12:45 pm onwards. They will be observed to point in the same direction some time between

August 15th, 2022

## Catherine is now twice as old as Jason but 6 years ago she was 5 times as old as he was. How old is Catherine now?

November 6th, 2022

## 9 hens lay 9 eggs in 9 days...

October 3rd, 2022

July 9th, 2020

August 1st, 2022

## Longest distance between 2 points on a cylinder

October 17th, 2020

August 1st, 2022

## Striking off a digit from each of the numbers written in seven rows, while preserving arithmetical operations

February 20th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 7th, 2020

May 2nd, 2020

## Is there a list of the number of sets of consecutive integers that sum to n?

December 11th, 2021

July 27th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

May 21st, 2020

March 11th, 2020

August 1st, 2022

March 17th, 2020

## Calculating the length of tape when it is wound up

February 16th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

March 28th, 2020