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There are infinitely many ways.
Think of any number, say x.
calculate y = 13 - x
Then x + y = 13
Since the choice of x was arbitrary, there are infinitely many answers.
That applies to pairs of numbers. You can repeat the process for sums of 3, 4, ... numbers.
Also, you can look at multiplication and other ways of combining numbers (binary operations).
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What to numbers multiplied together make 13?
There are no two WHOLE NUMBERS that equal 13 besides the obvious 1 & 13.
What two numbers make 39?
13 and 3
Which 2 numbers multiplied together make 13?
1 x 13 and 13 x 1
Which to prime numbers make 20?
They are: 13+7 = 20
What are 2 odd prime numbers to make 30?
17 and 13
What to numbers multiplied together make 13?
There are no two WHOLE NUMBERS that equal 13 besides the obvious 1 & 13.
Which two prime numbers multiply to make 403?
13*31=403 13 and 31 are prime numbers.
What 2 numbers multiply to make 169?
338
What two numbers make 39?
13 and 3
Which 2 numbers multiplied together make 13?
1 x 13 and 13 x 1
What two consecutive numbers make a product of 182?
The numbers are 13 and 14.
What pair of prime numbers make 52?
2 and 13.
What two prime numbers make 900?
887 and 13
Which to prime numbers make 20?
They are: 13+7 = 20
How many ways can you make 1 3?
In whole numbers, 2. 1 * 13 = 13
What two prime numbers make up 169?
They are: 13*13 = 169 or 167+2 = 169
What three numbers multiply to make 1001?
7, 11 and 13.
