2520
is the smallest number that can be divided by each of the numbers from 1
to 10
without any remainder.
What is the smallest positive number that is evenly divisible by all of the numbers from 1
to 15
?
Note:
m
evenly dividesn
means simply thatn/m
is an integer.
What is the difference between private
and protected
methods?
What is the difference between @@some_attr
and @some_attr
?