3 and 7
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no if you multiply two primes for example 7x9=63 63 is not prime because 9 and 7 go into it
none 29 is a prime number
two prime numbers when added together will equal 63: 2 + 61
3*3*7=63
2 is a prime because it can only be multiplied by 1x6 but 63 isn't