"Finding larger and larger prime numbers therefore became a quest for many mathematicians." Both recent record holders are Mersenne primes, a kind of number named after the French monk Marin ...

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Nationwide Building Society is hiking the amount its mortgage customers can borrow interest-free to make their homes “greener” after seeing low take-up of its previous offering. The society is ...

Nationwide Building Society is hiking the amount its mortgage customers can borrow interest-free to make their homes “greener” after seeing low take-up of its previous offering. The society is ...