If a number is both a factor of 42 and a multiple of 7, then the number may be ()

If a number is both a factor of 42 and a multiple of 7, then the number may be ()


7,14,21,42



A number is not only a multiple of 7, but also a factor of 42


The factors of 42 are 42,21,14,7,6,3,2,1, in which the multiples of 7 are 42,21,14,7, the maximum is 42 and the minimum is 7



The minimum two digits of a multiple of 5 and 2 are () and the maximum three digits are ()


10
nine hundred and ninety



The maximum two digits of a factor 5 and a multiple of 2 are, and the maximum three digits are


90 and 990