Answer:
400
Step-by-step explanation:
There are 599 numbers from 1 to 599.
There are
INT(599/4) = 149 numbers divisible by 4 and
INT(599/6) = 99 numbers divisible by 6,
However, some of these numbers have been counted twice. For example, 12 is counted twice, because 12 is divisible by both 4 and 6. There are
INT(599/12) = 49 numbers divisible by 12.
599 numbers
-149 divisible by 4
- 99 divisible by 6
+49 double-counts
400 numbers not divisible by 4 or 6.
