The number 7 x 11 x 13 + 13 is :
Negative Integer
Composite Number
Irrational Number
Prime Number
7 x 11 x 13+13 = 13(7 x 11 + 1) = 13(78) Now this number has more than two factors. Therefore it is a composite number.
The number 7 x 11 x 13 + 13 + 13 x 2 is