Much faster than the naive prime test. Included are modified operations that allow prime tests much closer to the floating point limit. Try any number less than or equal to 4,503,599,627,370,449 Example primes: 4503599627370449 441351011953069 567833813222321 996902459161177 840914510012749 500216587626271 382730986323347 3664527912601889 1341228135721561 2164651063452433 1565057425725349 3323453823830513
