Write two composite numbers so that the sum of them is prime and the sum is the smallest______ And______ ．

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• 5. Which of the following numbers are prime numbers and which are composite numbers? 27 13 16 2 7 87 100 63 57 5 92 73 41 33 17 61 11 14 35 37
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• 13. 1: Among the four numbers 1, 2, 5 and 15, the prime number has () and the combined number has (), () is the common factor of these numbers 2: The minute hand of the clock goes from 3:25 to 3:40, and the minute hand () rotates () degrees 3: A is a natural number greater than 0. The greatest common factor of a is () and the least common multiple is 5: The numerator of a fraction is the smallest composite number, and the denominator is the smallest composite number in the odd number. The fraction is () 6: 350ml=( )L 7: The greatest common factor of 24 and 42 is (), 24 times () to get the least common multiple of 24 and 42
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