38 = () + () (prime number in brackets) nothing
31+7
19+19
Fill in with a prime number=______ +______ =______ +______ .
According to the definition of prime number, 22 can be written as the sum of two prime numbers: 22 = 19 + 3.22 = 17 + 5, so the answer is: 19, 3, 17, 5
22 = () + () = () - () write prime in space
22=(11 )+( 11)=(23 )-(1 )