Let's identify the prime numbers between 90 and 100. A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

• 91 = 7 x 13
• 92 = 2 x 46
• 93 = 3 x 31
• 94 = 2 x 47
• 95 = 5 x 19
• 96 = 2 x 48
• 97 = Prime
• 98 = 2 x 49
• 99 = 3 x 33

Therefore, the only prime number between 90 and 100 is 97.

So, there is only 1 prime number between 90 and 100.