Question

Dani says she is thinking of a secret number.As a clue,she says the number is the least whole number that has three different prime factors.What is Dani's secret number?What is its prime factorization?

Answer 1

List the first few prime numbers.
2, 3, 5, 7, 11, 13, ...

We want the product of the three lowest prime numbers to form the least whole number.
2*3*5 = 30
This the least whole number.

Answer:
The number is 30.
It factors into 2, 3 and 5.