13_10
4
There are 4 prime numbers between 10 and 20. They are 11, 13, 17, and 19.
4/11
15
There are 11 integers between -4 and 8.
The prime numbers between 4 and 20 are 5, 7, 11, 13, 17 and 19. Their sum is 72.
The prime numbers between 10 and 20 are 11, 13, 17, and 19.
Rectangular numbers, also known as oblong or pronic numbers, are the products of two consecutive integers. The rectangular numbers between 3 and 11 are 6 (2×3), 8 (2×4), 12 (3×4), and 20 (4×5). Among these, only 6 and 8 fall within the specified range of 3 to 11.
Between two and three.
The integers between 4 and 12 are 5, 6, 7, 8, 9, 10, and 11. Other numbers between 4 and 12 are √19, 6 1/2, and 11.987654321. There are infinitely many numbers between 4 and 12.
4, 6, 8, 9, 10.
4, 6, 8, 9, 19