Yes as for example 2+5 = 7
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A mirror prime.
2*72 = 98Surely a squared number is not a prime number?Another answer:19+79 = 98
Here are some:13, 3117, 7137, 7379, 97107, 701
None. 251 is a prime number.
2 is the only even prime number, and it can be added to several odd numbers to make another prime number.For example:5 + 2 = 711 + 2 = 1317 + 2 = 1941 + 2 = 43