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The integers between 2.09 and 15.3 are 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15. So there are 13 integers between 2.09 and 15.3.
13 is prime 14=2x7, 2 factors 15=3x5, 2 factors 16=24, 4 factors 17 is prime 18=2x32, 3 factors 19 is prime So the answer is 3 (14, 15 and 16)
The square root of 150 lies between 12 and 13.
Six numbers
Inclusive of 11 and 19 it is 46189 if not it is 221The product is: 11*13*17*19 = 46,189