Meaning of NUMBERS in English
[plural] [noun]Small numbers of (= A small number of) children are educated at home.Large numbers of (= A large number of) invitations have been sent.These magazines are produced in vast numbers.The crowd managed to force its way in by (sheer) force/weight of numbers (= because there were so many of them).(saying) 'There's safety in numbers' means the more people there are in a group, the less likely you are to be harmed.
Cambridge English vocab. Кембриджский английский словарь. 2012