2. How many of the above five numbers are equal to the product of an integer greater than 1 and an odd number greater than 1?
Two statements, one meaning. Give a few examples: 6 = 2 * 3, 2 and 3 are both greater than 1, and there is an integer 2 and an odd number 3, then 6 meets the requirements; 8=2*4, 2 and 4 are even numbers, which does not meet the requirements; 9=3*3, an integer 3 and an odd number 3,9 meet the requirements; 12=2*6. It cannot be said that 12 does not meet the requirements, because 12=3*4, that is, in all decomposition schemes, as long as 1 meets the requirements, this number meets the requirements in the problem.