Snaefell Wheel Snaefell Wheel The Snaefell Wheel (also known as Lady Evelyn) is a waterwheel in Laxey, Isle of Man. The wheel stands in the washing floors in Laxey Glen Gardens, approximately 700 metres south of the larger Laxey Wheel. The wheel was unveiled with the name "Lady Evelyn" to mark the extensive work of Evelyn Jones in her support of the Laxey Mines Research Team. The wheel was purchased by the Snaefell Mining Company in 1865. Built by Messrs Leigh and Gilbert Howell of the Hawarden iron works in Flintshire, north Wales, it was one of two identical 50 ft (15.24
Largest known prime number the progression of the largest known prime number in ascending order. Here M = 2 − 1 is the Mersenne number with exponent "n". The longest record-holder known was M = 524,287, which was the largest known prime for 144 years. No records are known before 1456. GIMPS found the fourteen latest records (all of them Mersenne primes) on ordinary computers operated by participants around the world. A list of the 5,000 largest known primes is maintained by Chris K. Caldwell, of which the twenty largest are listed below. Largest known prime number The largest known prime number () is