Sunday, November 13, 2011

Number Recall

A friend of mine was having trouble remembering the numeric part of her license plate number, which happened to be 253. I pointed out that the number was the product of two two-digit primes, 11 and 23, and that the digits of the factors and the target number were all members of the Fibonacci series.

Oddly enough, she didn't find these too helpful, but chose to just remember that 2+3=5.