At first you may get confused but look at those numbers carefully :)
as you see first result is divisible buy one of the product (second product in all cases is unknown)
so let's check where it will lead us :)
Now you can clearly see that every number was multiplied by number 1 higher than itself.
etc...
it means that after equation sign there should be
because
:)
as you see first result is divisible buy one of the product (second product in all cases is unknown)
so let's check where it will lead us :)
Now you can clearly see that every number was multiplied by number 1 higher than itself.
etc...
it means that after equation sign there should be