(2 x 9) + (3 x 9) = 5 x 9 = 45
4a + 3b where a and b are your numbers.
It is: 15+1+1 = 17 which is a prime number
250 plus another number get me to 1000 = 1250
8980
370.58
No. There is no number you can write that someone else can't come along and write "plus one" after it.
6w
5638
2X+20 Where "X" is your number.
35727
5+3
2x + 27