5 and 7 are both prime numbers.
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1 is special 2 prime 3 prime 4 composite 5 prime 6 composite 7 prime 8 composite 9 composite 10 composite 11 prime 12 composite ext.
Prime numbers: 2 3 5 and 7 Composite numbers: 4 6 8 9 and 10 Note that 1 is neither a prime or a composite number
No. 5 and 7 are both prime numbers.
Prime numbers are: 2 3 5 7 Composite numbers are: 4 6 8 9 10 So the ratio is: 4 to 5
7, 31, 103 All three are prime numbers and not composite numbers.