17... and 19 !
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The numbers between 10 and 20 that are not prime are 12, 14, 15, 16 and 18. So 15 is the odd number and the rest are even numbers.
The prime numbers between 15 and 20 are 17 and 19. To find the product of these two prime numbers, you simply multiply them together: 17 x 19 = 323. Therefore, the product of the prime numbers between 15 and 20 is 323.
No. The greatest common divisor for 15 and 20 is five. Five is a prime number.
23 is the only prime number between 20 and 29.
The only prime n umber between 20 and 25 is 23.