How many of the following numbers are divisible by 1

Required number of number = 4.

(935421 x 625) = ?

The largest 4 digit number exactly divisible by 88 is:

Obviously 113 would be exactly divisible so we want to know what that number is.

We get this by multiplying 113 with 88 = 9944

Which of the following is a prime number ?

5358 x 51 = ?

= 5358 x 50 + 5358 x 1

= 267900 + 5358

= 273258.