I came across this article in the BBC news letter by accident. The lead to it had no reference to any numbers.
I cannot understand why the author is dumbing herself down. Does she seriously believe that it is difficult to remember a series of ten digit number code?
If I ask her for her mobile phone number, will she find it difficult to tell me the number? And from her name, she appears to be either Indian or of Indian, my part of the country, origin, all the more reason to disbelieve her self doubt.
Can you not remember your ten digit mobile telephone number, or for that matter, your landline phone number with country and area code numbers?