Math

Compute the greatest common divisor of several integers with the Euclidean steps shown

Compute the least common multiple of several integers with the working and prime factorisation

Calculate factorials of non-negative integers, including large results, or list a range

Add, subtract, multiply and divide fractions with common-denominator and reduce steps

Reduce fractions to lowest terms with the GCD steps shown, in bulk

Find the least common denominator for several fractions and show each conversion

Generate an arithmetic sequence, sum it, or solve backwards, with formulas and steps

Generate a geometric sequence, sum it, or solve backwards, with formulas and steps

Compute permutations A(n,r), list all arrangements, and show the formula

Compute combinations C(n,r), list every subset, and show the formula

Intersect, subtract and union two text lists, with dedupe and case options

Round, truncate, pad or group decimals in bulk across pasted text

Add or subtract days, hours, minutes and seconds, or measure the gap between two times

Percent of a total, percentage change, discounts and tax, each with the formula shown

Weighted GPA from credits and grades, five scales, custom thresholds, letter grades and target GPA

Expression calculator with powers, factorials, trig, logs, DEG/RAD, Ans memory and batch evaluation