#1**0 **

NOT positive about this....

100 thru 999 is 900 3-digit numbers

there are 180 multiples of 5

there are 128 multiples of 7

there are 26 multiples of 35 (which must be subtraced to avoid double counting)

900 - (180+128-26) = 618 Corrected after input from Rom....Thanx !

ElectricPavlov Dec 2, 2018