Determine if a number is prime or list its prime factors. Input any integer between 0 and 999,999,999,999. Identify the prime ordinality of a prime number, showing its position in the sequence of primes.
by Bruce Schechter★ 4.926 ratingsUtilitiesFreeData updated 2026-09-26
Calculate rates using AGA 3 standard. Determine MCF per day for a single well. Input duration and other parameters. Perform rotary (direct) MCF calculations. No cell service required.
View the positions of the Sun, Moon, and planets on an intuitive sky grid. Slide a time bar to forecast celestial appearances. Navigate without augmented reality or motion tracking.
Create character sheets with guided setup for ability scores, classes, languages, and equipment. Roll 3d6-in-order, adjust prime requisites, track gold and gear, and upload portraits. Sync data via iCloud across devices. Export to PDF or print.
Generate random numbers between 0 and 999,999,999. Create multiple random numbers at once. Save and view history. Set custom ranges or segments. Use voice to name random selections. Customize password formats. Remove ads with PRO subscription.
