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Integer factorization. Trial division
Integer factorization using trial division algorithm.
Factoring calculator
This calculator generates all pairs of factors for given integer.
Gaps and missing numbers finder
This online calculator helps you find gaps and missing numbers in an integer sequence.
Quick Sum Calculator
This online calculator sums up entered integer numbers. Any symbol what is not a digit, for example, a space, a comma, a semicolon, etc, serves as a separator. It is useful when you need to sum up several numbers but do not have speadsheet program at hand.
The rational number as a fraction
This online calculator writes the rational number as a fraction (the ratio of two integers), using the formula of infinite geometric sequence.
Mod calculator
This online calculator performs modulo operation on integers and on doubles as well (because it just returns reminder of division)
Factorial
This online calculator calculates factorial of a positive integer. Practically unlimited positive integer. In fact, it is limited only by the time you are willing to wait until calculation completes. I was patient enough to wait for 100000!
Tips and tricks #12: Long (infinite) calculations
This article describes how to perform long or infinite calculations while allowing user to stop them
Range finder
This online calculator analyzes integer number sequence and prints all continuous ranges it detects
Modular exponentiation
The calculator performs modular exponentiation of big numbers.
Bit length
The calculator counts number of bits required to represent a number in the binary form. It also displays an input number in binary, octal, decimal, and hex forms.
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