n is a positive integer and k is the product of all integers from 1 to n. If k is a multiple of 1440, then the smallest value of n is?
a. 2
b.4
c. 12
d.8
e.30.
a. 2
b.4
c. 12
d.8
e.30.
!6 = 720danjuma wrote:n is a positive integer and k is the product of all integers from 1 to n. If k is a multiple of 1440, then the smallest value of n is?
a. 2
b.4
c. 12
d.8
e.30.
!7 = 5040 ( which is not a multiple of 1440 )
!8 = 40320
1440 * 28 = 40320,
So answer must be D 8
