If the total sum is still too large to conveniently test for divisibility, and is longer than three digits, then the algorithm can be repeated to obtain a smaller number.
On the Windows calculator, 1001 is the smallest positive integer whose reciprocal is automatically displayed in scientific notation.
On Windows Calculator, numbers larger than 1032 and non-terminating decimals smaller than 0.001 or 10−3 are always displayed exponentially.
In the Mawlawiyyah order of Sufi Islam, a novice must complete 1001 days of prayer before becoming a dada, or junior teacher of the faith.
[4] Among them are recent books aiming to introduce significant works in various fields: There are also many film titles starting with 1001.