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Test any number for primality with a single click. It uses a deterministic test and uses the Sieve of Eratophenes logic. Listed on the Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. $4.95 / 10 utility suite.

Herbal Medicine provides you with accurate, science-based information on the health benefits and safety of herbs. This guide discusses the basic principles of herbal medicine, outlines the properties and characteristics of more than 290 single herbs.

Amazing patterns of spring reflecting the majestic beauty of the awakened nature are like masterpieces of an unknown artist. With this flower screensaver you can enjoy the whole gallery of the most fascinating blooming spring scenes.

Magic of Morning is a screensaver that brings morning tenderness, forest filled with gentle sunlight, beautiful singing of birds to your desktop. It immerses you into the calm and harmony of living nature.

This screensaver shows beautifuls and colorfuls images of Butterflies and fat Moths. These a tiny creationes is simply splendid. The screensaver contains 40 pictures and music background with classic and popular themes.

3 Maths Applications for 1 Price: Factor Calculator, Prime Number Calculator, Primality Tester. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Free one month trial. Only $4.95 for the suite