N! is defined for non negative integers as N!=N*(N-1)*(N-2)* ...3*2*1 . The number of positive integers which divide (25 )! are (a) (b) (c) (d)
(1)(2^13).(3^3).(5^2)
(2)(2^8).(3^2).(5^2)
(3)(2^11).(3^2).(5)
(4)(2^8).(3^3).(5^3)
(1)(2^13).(3^3).(5^2)
(2)(2^8).(3^2).(5^2)
(3)(2^11).(3^2).(5)
(4)(2^8).(3^3).(5^3)
Last edited by harsh.champ on Thu Feb 04, 2010 12:58 pm, edited 1 time in total.
