How many integer numbers are possible between 666 and 8888?

Explanation

Since the form of such a number is 672m + 5, where m = 1, 2 , 3,.......
So, the first no. =`672 xx 1` + 5 = 677 and the highest possible number in the given range =`672 xx 13` + 5 = 8736 + 5 = 8741
Thus the total number batween 666 and 8888 are 13.