Number

Theory

Terminal developed to make the study and search for numbers with special properties more convenient and efficient.

What to do?

Random Input

Theory

Terminal developed to make the study and search for numbers with special properties more convenient and efficient.

What to do?

Random Input

What to do?

Use the input field on the bottom to enter some properties of numbers. Hit enter to calculate all numbers to 1000 that fullfill your conditions. For example enter
square

to return all squares to 1000. Or you can use
cube

to return all cubes. You could also enter
dsum == 10

to find all numbers with a digit sum of 10. The power lies in the possibility to combine properties. Enter
square cube dsum == 10

to find all numbers that are squares and cubes and have a digit sum of 10. Following operators are possible:

== , < , > , >= , <= , !=

Besides the resulting number squence you will see the length of the squence and the seed: The seed is the human-readable input converted into a computer code. You can also enter the code in the terminal. For example use
0210009002

to display all prime numbers that contain exacly two digits. For further help type
help

even, odd numbers

perfect squares, cubes

(non) prime numbers

number is nth power

number is nth exponent

modulo, x mod b == a

divisor sum

ratio of divsum and number

number of divisors

digitsum

number of distinct digits

number of distinct prime factors

number of prime factors

greatest prime factors

least prime factors

most occurring prime factors

least occurring prime factors

random condition