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?

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.