Play with the year
Happy 2024!
Did you know that in a meeting of 24 people you can make 2024 different groups of 3 people? Also, 2024 is a tetrahedral number.
Now let's play with the year 2024.
Rules:
Try to get every number, from 1 to 100 using the digits of this new year.
In your turn, say a number from 1 to 100 and then, the operation that allows you to get that number.
All the digits in 2024 must appear once in the operation.
It is allowed any math operation you might know.
You get a possitive for every number you get if someone did't get it before. But, if you get the same number than your mate with the digits 2 0 2 4 sorted, you take that possitive from your mate.
Happy 2021!
2021 = 43 * 47, 43 and 47 are consecutive primes and also cousin primes (47-43=4). Nobody knows if there are an infinite set of cousin primes. Is there anything else special about this number?
Happy 2020!
¿Cuál es más grande, 2019^2020 o 2020^2019?