1) 15 + 1 = 16
2) 14 + 2 = 16
3) 13 + 3 = 16
4) 12 + 4 = 16
5) 11 + 5 = 16
6) 10 + 6 = 16
7) 9 + 7 = 16
8) 8 + 8 = 16
There are 8 pairs since "0" is not counting number.
The factor pairs of 20 are pairs of numbers that can be multiplied together to give 20. The factor pairs of 20 are (1, 20), (2, 10), and (4, 5). These pairs represent all the possible combinations of numbers that can be multiplied to equal 20.
121 - 16 = 105. There are two other pairs.
29
There are infinitely many pairs. Two examples are 55000 and 55000, or 100000 and 10000.
55 can be divided by 1, 5, 11, and 55. These are the factors of 55, which are numbers that can divide evenly into 55 without leaving a remainder. Factors are pairs of numbers that multiply together to give the original number, in this case, 55.
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...
The factor pairs of 20 are pairs of numbers that can be multiplied together to give 20. The factor pairs of 20 are (1, 20), (2, 10), and (4, 5). These pairs represent all the possible combinations of numbers that can be multiplied to equal 20.
All the following pairs of numbers:1 & 60;2 & 30;4 & 15;5 & 12;6 & 10.
121 - 16 = 105. There are two other pairs.
There 4 pairs of primes that can give a sum 40 in addition. They are (3,37), (11,29), (17,23),(19,21).
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.