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Q: What three prime numbers have a sum of 20?

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They are: 3+5+11 = 19

-20

It is 75.

148

3 + 17 = 20

17 and 3 are two prime numbers whose sum is 20. Their product is 51.

3 and 17

600 * * * * * It is, in fact, 639

19, 20, 21

It is 1.

The three numbers will be 20, 22, and 24. 20 + 22 + 24 = 66

17

If you mean "the sum of three odd numbers", that isn't possible. The sum of three odd numbers will always be an odd number.

(2,3) and (2,5) are the two pairs such that the sum of their elements is a prime number.

The sum is: 23+29+31+37 = 120

The three prime numbers between 20 and 35 are 23, 29, and 31.

23+29 = 52

17

The largest prime less than 20 is 19. The largest prime over 60 is 61. The sum of these two numbers is 80.

The prime numbers between 4 and 20 are 5, 7, 11, 13, 17 and 19. Their sum is 72.

18, 19, 20

no

No.

There is only one even prime number: 2. So, representing 20 as a sum of even prime numbers would be 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2.

2 + 3 = 5