Automaticity is the ability to do things without occupying the mind with the low-level details required, allowing it to become an automatic response pattern or habit. It is usually the result of …

## An LCM DS Problem

Is x divisible by 12? (1) x is divisible by 3 and 4. (2) x is divisible by 2 and 6. …

## Factors in Factorials 1

For how many positive integer values of is a factor of ? (A) 11 (B) 12 (C) 13 (D) 14 (E) 15 …