37, 4+6+8+9+10 = 37.
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129 - 112 = 17
The sum first Prime number is (2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 ) = 129 The sum of the first composite numbers is (4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18) = 112 The difference is 129 - 112 = 17 !!!!!
2 is the smallest prime number. 9 is the greatest composite number less than 10. The sum of 2 and 9 is 11.
composite
10 is the only composite factor of 10.