Find Two Prime Numbers by Sum Calculator

Welcome to the free online calculator to find two prime numbers by a given sum. For example, what are two prime numbers whose sum is 99?

First, what are prime numbers?

A prime number is a natural number greater than 1 with no factors other than 1 and itself. Prime and Composite Number Checker help you quickly verify prime numbers.

So, how to find two prime numbers by a given sum?

This is a very tricky question. First, find all prime numbers from 1 to the sum. Then, calculate whether the sum of the two prime numbers is equal to the sum. As you can imagine, it took a lot of work to find the answer.

For example, What two prime numbers sum up to 32?

First, find all prime numbers from 1 to 32. There are a total of 11 prime numbers:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31

Second, calculate the sum of two prime numbers, 11 prime numbers share 55 combinations, which are:

2 + 3 = 5

2 + 5 = 7

2 + 7 = 9

2 + 11 = 13

2 + 13 = 15

2 + 17 = 19

2 + 19 = 21

2 + 23 = 25

2 + 29 = 31

2 + 31 = 33

3 + 5 = 8

3 + 7 = 10

3 + 11 = 14

3 + 13 = 16

3 + 17 = 20

3 + 19 = 22

3 + 23 = 26

3 + 29 = 32

3 + 31 = 34

5 + 7 = 12

5 + 11 = 16

5 + 13 = 18

5 + 17 = 22

5 + 19 = 24

5 + 23 = 28

5 + 29 = 34

5 + 31 = 36

7 + 11 = 18

7 + 13 = 20

7 + 17 = 24

7 + 19 = 26

7 + 23 = 30

7 + 29 = 36

7 + 31 = 38

11 + 13 = 24

11 + 17 = 28

11 + 19 = 30

11 + 23 = 34

11 + 29 = 40

11 + 31 = 42

13 + 17 = 30

13 + 19 = 32

13 + 23 = 36

13 + 29 = 42

13 + 31 = 44

17 + 19 = 36

17 + 23 = 40

17 + 29 = 46

17 + 31 = 48

19 + 23 = 42

19 + 29 = 48

19 + 31 = 50

23 + 29 = 52

23 + 31 = 54

29 + 31 = 60

we can get the answer of two prime numbers adding up to 32 is 3 and 29 or 13 and 19.

Is it troublesome? This sum is still a small number. Imagine, if you wanted to calculate the sum of two prime numbers is 5000 or 50000. What should you do? It can’t be solved by manual calculation at all.

Therefore, you desperately need a helper tool to do the job. Find Two Prime Numbers by Sum Calculator is designed to solve such problems, the calculator omits all steps and gives the answer in milliseconds.

Next, we will introduce how to use the calculator.

Using the calculator is simple, follow these 2 steps:

Next, let’s look at some examples.