Not to be confused with Ball bearing. Bearing balls are special highly spherical and smooth balls, most commonly used in ball bearings, but also used as components in things like freewheel mechanisms. The balls come in many different grades.
Euler Prime. Let a prime number generated by Euler's prime-generating polynomial be known as an Euler prime. Then the first few Euler primes occur for , 2, ..., 39, 42, 43, 45, ... (OEIS A056561), corresponding to the primes 43, 47, 53, 61, 71, 83, 97, 113, 131, 151, 173, ... (OEIS A005846).
The largest prime number yet discovered â all 17 million digits of it. Ever since Euclid proved there were an infinite number of prime numbers, mathematicians have been on a quest to find higher and higher examples. Wednesday 6 February 2013 09.28 EST First published on Wednesday 6 February 2013 09.28 EST.