Problems within the power steering unit cause even louder noises, but they often do not happen until you turn the wheel as far as you can in one direction. If the power steering drive belt is loose or damaged, whining often gets quite loud.
The number 2 57,885,161 â 1 has picked up the baton as the largest known prime number, a result that is tremendously exciting for mathematicians, if rather irrelevant to the rest of mathematics. Primes are numbers that can only be divided by themselves and 1, such as 2, 3, 5, 7 and 11.
Many of the largest known primes are Mersenne primes. As of February 2013 the ten largest known primes are Mersenne primes, while the eleventh is the largest known non-Mersenne prime. The last 15 record primes were Mersenne primes.