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Huge numbers, exact digits: factorials, powers, roots, GCD and LCM. Offline.
Digitwright is a big-number calculator for students, teachers, programmers, puzzle solvers and anyone who wants every digit right. It works like a desk instrument from the 1970s: a glowing display, real keys and a printed tape that unspools the whole answer. EXACT, NOT APPROXIMATE • Whole numbers and fractions are kept exactly: (1 ÷ 3) × 3 is 1, and 0.1 + 0.2 is 0.3 • Square roots and powers stay exact when the answer is exact: √2 × √2 = 2, √8 ÷ √2 = 2 • Everything else is correctly rounded to the decimals you choose, and labelled EXACT or ≈ BIG NUMBERS • Factorials, powers and roots with up to 100,000 digits, such as 10000! (35,660 digits) • Up to 10,000 decimals: √2, cube roots and real powers such as 2^√2 • Enter numbers as integers, decimals or E-notation (23E18, 3.5E19) THE FUNCTIONS • + − × ÷, x², √x, 1/x, yˣ, ˣ√y, 10ˣ and n! • MOD, GCD and LCM for whole numbers of any size • Int and Frac, Ans, x⇄y and 10 memories READ EVERY DIGIT • The display shows up to 54 digits at once • View prints the whole result on a paper tape, in groups of five with digit positions • Copy and paste long numbers to and from other apps • A table of number names, from billion to centillion and googol FREE TO TRY, THEN UNLOCK ONCE Free to try: every feature for 7 days. Then unlock Pro once — no subscription, no ads, works offline. PRIVATE BY DESIGN Works offline, no account, no data collected. How it's calculated: the methods behind every result, at https://wrightcalc.app/digitwright/ Questions or feedback: support@wrightcalc.app Results come from exact rational arithmetic and certified rounding. Very long results can take a few seconds; AC stops a calculation. The developer accepts no liability for loss or damage arising from use.