- A previous review left 2 out of the 4 problems...I'll tell you the other 2: A- "find the first 15 prime numbers that if you add them, the result is a prime number"...so for example the first answer is 11 because 1+1 = 2 and 2 is a prime number B- 1729 is the first number that can be obtained the following way: 9*9*9 + 10*10*10 = 1*1*1 + 12*12*12 (9 to the cube + 10 to the cube) =(1 to the cube + 12 to the cube) Find the other numbers less than a million in which you can fit this criteria Out of those 4 problems, if you cannot solve 2, DO NOT BOTHER to apply to this company....