Question

Which the samllest 4 digit prime factors
A) 30
B) 66
C)210
D)10​

Answer 1

c    part 2*3*5*7

rest dont have 4 factors only..

10 is 5*2

66 is 11*3*2

30 is 2*3*5

but none is a 4 digit prime no. as you have not given the correct option then the answer would have been 1001