In 1979, a mother and her 4 sons are aged 97, 67, 61, 59 and 53 respectively. All these ages and that year are prime numbers.
- That “situation” did already happen (prime numbers in the year and in their 5 ages) in the past for that family. When and what were their ages?
- That “situation” can occur again in the future (we suppose science will allow us to live much longer than now). When and what will be their ages?