02, 03, 05, 07, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97100~01, 03, 07, 09, 13, 27, 31, 37, 39, 49, 51, 57, 63, 67, 73, 79, 81, 91, 93, 97, 99200~11, 23, 27, 29, 33, 39, 41, 51, 57, 63, 69, 71, 77, 81, 83, 93300~07, 11, 13, 17, 31, 37, 47, 49, 53, 59, 67, 73, 79, 83, 89, 97400~01, 09, 19, 21, 31, 33, 39, 43, 49, 57, 61, 63, 67, 79, 87, 91, 99500~03, 09, 21, 23, 41, 47, 57, 63, 69, 71, 77, 87, 93, 99600~01, 07, 13, 17, 19, 31, 41, 43, 47, 53, 59, 61, 73, 77, 83, 91700~01, 09, 19, 27, 33, 39, 43, 51, 57, 61, 69, 73, 87, 97800~09, 11, 21, 23, 27, 29, 39, 53, 57, 59, 63, 77, 81, 83, 87900~07, 11, 19, 29, 37, 41, 47, 53, 67, 71, 77, 83, 91, 97
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One. 997 and 2
The answer must have an even number and an odd number, because if you add two odd numbers, the sum would be even. Therefore, the first answer is the only prime even number: 2. 2 + 997 is 999, so the other answer would be 997. 997+2 (!?!) 997+2 (!?!) 2 and 997
The prime numbers (factors) of 1000 are: 2 and 5
Two of the factors of 80 are prime numbers: 2 and 5.
There are many, many more odd prime numbers than even prime numbers; there is only 1 even prime number, namely 2, whereas the odd prime numbers are 3, 5, 7, 11, ...