Online Number Tools
Online Number Tools is the OnlineTools.com sub-site for number sequences, matrix operations, primality, fractions, base conversion, and arithmetic operations.
Number Theory & Sequences(22)
All Divisors
Lists all divisors of a given number.
Arithmetic Progression
Generates a sequence of numbers in arithmetic progression.
Check Palindrome
Tests whether a number is a palindrome.
Cubes Sequence
Generates the sequence of perfect cubes.
Even Numbers
Generates a sequence of even numbers.
Fibonacci Numbers
Generates Fibonacci numbers up to a chosen index.
Fibonacci-like Series
Generates Fibonacci-like series with custom starting values.
Geometric Progression
Generates a sequence of numbers in geometric progression.
Greatest Common Divisor
Computes the GCD of two or more numbers.
Integer Sequence
Generates a sequence of consecutive integers.
Least Common Multiple
Computes the LCM of two or more numbers.
Linear Recurrence
Calculates members of any linear recurrence series.
Look-and-Say Numbers
Generates the look-and-say sequence by describing each digit run.
Lucas Numbers
Generates Lucas series numbers up to a chosen index.
Number Palindrome
Builds a palindrome from a starting number by reflecting digits.
Odd Numbers
Generates a sequence of odd numbers.
Powers of Ten
Generates numbers in the form 10^n.
Powers of Two
Generates numbers in the form 2^n.
Primality Test
Tests whether a given number is prime.
Prime Factors
Computes the prime factorisation of any number.
Prime Numbers
Generates a sequence of prime numbers.
Squares Sequence
Generates the sequence of perfect squares.
Math & Numbers(16)
Add Fractions
Adds a list of fractions and returns the simplified sum.
Calculate Phi Digits
Calculates digits of the golden ratio φ to arbitrary precision.
Calculate Pi Digits
Calculates digits of π to arbitrary precision.
Calculate e Digits
Calculates digits of Euler's number e to arbitrary precision.
Digit Product
Multiplies all the digits of the input numbers.
Digit Sum
Sums all the digits of the input numbers.
Draw Pascal's Triangle
Draws Pascal's Triangle of binomial coefficients to a chosen depth.
Filter Numbers
Filters a list of numbers by criteria.
Find Maximum
Finds the largest number in a list.
Find Minimum
Finds the smallest number in a list.
Number Product
Multiplies all the numbers in a list.
Number Sum
Sums all the numbers in a list.
Round Number
Rounds a number to chosen precision.
Shuffle Digits
Randomly shuffles the digits of a number.
Sort Digits
Sorts the digits of each number.
Sort Numbers
Sorts a list of numbers in ascending or descending order.
Number Conversion(7)
Change Number Base
Converts a number from any base to any other base.
Negadecimal Base
Converts base-10 numbers to negabase-10 representation.
Numbers to Words
Spells out cardinal and ordinal numbers in English.
Power of Ten Form
Expresses a number in the form 10^x.
Power of Two Form
Expresses a number in the form 2^x.
Unicode Fractions
Converts simple fractions to their Unicode glyph form.
Words to Numbers
Converts spelled-out numbers back to digit form.
Linear Algebra & Vectors(6)
Identity Matrix
Generates a diagonal identity matrix of chosen size.
Matrix Determinant
Computes the determinant of a square matrix.
Matrix Inverse
Computes the inverse of any square matrix.
Matrix Transpose
Computes the transpose of a matrix by swapping rows and columns.
Random Number Matrix
Generates a matrix populated with random numbers.
Random Vector
Generates a random row or column vector.