SAT Math Practice Question #22684 - SATify | SATify
#22684
number theory
prime factorization
hard
120 sec
How many four-digit numbers have all three of the following properties?
(I) The tens digit is 0 and the ones digit is 1.
(II) The number is 1 more than a perfect square.
(III) The number is the product of exactly two prime numbers.