Of course famous is a relative term, but I'll do my best to list some of the players whose names would resonate with most, if not all hockey fans.
For a full list of players who wore the number 21 in there career, see the link below
http://www.hockey-reference.com/friv/numbers.cgi?number=21
As a note, I only included players who wore the number 21 for a substantial portion of their career.
Peter Forsberg
Stan Mikita
Brent Suter
getzlaf
21 and any multiple of 21.
Roberto Clemente
Roberto Clemente
Andrea Pirlo
Hockey Homicide was created on 1945-09-21.
Any number can be multiplied by 21
It can be if the first number is x + 21 and the second is x for any number x.
Family Glide Hockey was created on 2008-10-21.
No, it is not possible. Every multiple of 21 is a composite number. 21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors. And a prime number has only two factors so, any multiple of 21 can't be prime.
Any of its factors which are: 1, 3, 7 and 21
1, 3, 7, 21.