121 - 16 = 105. There are two other pairs.
29
There are infinitely many pairs. Two examples are 55000 and 55000, or 100000 and 10000.
9 and 11
17,5,13,11,14,19,9,8
Natural numbers or Counting numbers Integers Rational numbers Irrational numbers
2 and 3
210
It could be anything you like - counting numbers, integer, rational numbers, real number, complex numbers or any subset of these. Each domain would give rise to a different range.
Natural numbers are the counting numbers: 1, 2, 3, 4, 5, etc... Integers are positive and negative counting numbers, and zero. So, an integer that is not a counting number could be 0 or any negative integer.
Any positive integer not including 0. Also known as "counting numbers." 1,2,3,4,5,6,7,8,9,10,11...
All the following pairs of numbers:1 & 60;2 & 30;4 & 15;5 & 12;6 & 10.
There 4 pairs of primes that can give a sum 40 in addition. They are (3,37), (11,29), (17,23),(19,21).
121 - 16 = 105. There are two other pairs.
Factor pairs are any two numbers being multiplied to give you a certain number. Factor Pairs of 16: 8x2, 4x4, and 16x1.
If it's a linear function, 3 should do, but 4 will give an extra check on you work. If the function is quadratic exponential, etc. then at least 4 pairs should be used.
Between 35 and 40, 36 has the most factor pairs.