A THREE DIGIT NUMBER IS SELECTED AT RANDOM. WHAT IS THE PROBABILITY THAT NONE OF THE THREE DIGITS ARE PRIME. IF POSSIBLE PLEASE HELP THANK YOU Glenn Hi Glenn,To form a three digit number you can use any of the nine digits from 1 to 9 as the first digit and then any of the ten digits from 0 to 9 as the second and third digits. Thus there are 9x10x10 = 900 three digit numbers. Of the ten digits, 6 are not prime. They are Hence if you select a three digit number at random the probability that none of its digits are prime is Harley
