Tool to make subtraction with large numbers. Subtraction is the operation opposite to arithmetic addition, defined as the addition of a negative number.
Subtraction - dCode
Tag(s) : Arithmetics
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
Subtraction
Subtraction of 2 numbers
Batch Subtraction Calculator
Answers to Questions (FAQ)
What is a subtraction? (Definition)
Subtraction is the operation of removing one value from another.
In computer science or on any electronic device (calculator type), subtractions are generally limited to about ten digits.
The subtraction of large numbers allows the operation to be performed on a computer with algorithms specific to large numbers.
How to calculate a subtraction with big numbers?
The dCode subtraction tool with big integers is based on arbitrary precision calculation algorithms allowing to subtract exact values without truncating to a defined precision nor need of a scientific notation up to several thousand digits.
Example: $ 98765432109876543210 - 12345678901234567890 = 86419753208641975320 $
This is called large/huge number subtraction.
Why calculators and computers are limited with subtractions?
Electronic tools and programs store numbers in memory cells of finite size, unlike numbers that can be way more bigger in size (theorically infinite). Thus, calculator subtractions can not generally exceed 10 digits, and computers are generally limited to 32 bits subtractions (2 ^ 32 = 4294967296 or 10 digits) or 64 bits (2 ^ 64 = 18446744073709551615 or 20 digits)
How to read a subtraction a-b?
The mathematical reading is $ a $ minus $ b $
But in a more literary way, it is possible to read:
$ b $ subtracted from $ a $
$ b $ removed from $ a $
$ b $ withdrawn from $ a $
Source code
dCode retains ownership of the "Subtraction" source code. Any algorithm for the "Subtraction" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Subtraction" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Subtraction" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.
Cite dCode
The content of the page "Subtraction" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source.
Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link:
In a scientific article or book, the recommended bibliographic citation is: Subtraction on dCode.fr [online website], retrieved on 2025-04-16,
