### Instruction: What is the least positive whole number divisible by four different prime numbers?### Response: I know that a number is divisible by a prime number if and only if it has that prime number as a factor.
So, to find the least positive whole number divisible by four different prime numbers, I need to multiply the four smallest prime numbers together.
The four smallest prime numbers are 2, 3, 5, and 7.
Multiplying them together, I get 2 * 3 * 5 * 7 = 210.
Therefore, the least positive whole number divisible by four different prime numbers is 210.