Question

find the sum of all numbers less than 1000 which are exactly divisible by 2,3,4,5,6,7​

Answer 1

=16. We can say that there are 16 numbers which are divisible by 2,3,4 and 5.

Answer 2

Step-by-step explanation:

Divisibility by 2

1000 is divisible by 2 because it has even no. at end

Divisibility by 3

1000 is not divisible by 3 because sum of all digits is not divisible by 3

Divisibility by 4

1000 is divisible by 4 because last 2 digit are divisible by 4

Divisibility by 5

1000 is divisible by 5 because it has 0 at the end

Divisibility by 6

1000 is not divisible by 6 because it is not divisible by both 2 and 3

Divisibility by 7

1000 is not divisible by 7 because double of last 2 digit is 0 and if we subtract it with the no. Left

We get no. not divisible by 7

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