In the natural numbers from 1 to 1000, the numbers that can not be divided by 5 or 7 are______ One

In the natural numbers from 1 to 1000, the numbers that can not be divided by 5 or 7 are______ One

999÷5=199… 5, that is, there are 199 natural numbers that can be divided by 5 in less than 1000 There are 142 numbers that can be divided by 7 There are 28 natural numbers which can be divided by 7 and 5 at the same time. 999 - (199 + 142-28) = 999-313 = 686