there aren't any as otherwise they wouldn't be prime numbers
There are 30 two-digit multiples of 3 plus 18 two-digit multiples of 5 minus 6 two-digit multiples of both. Answer: 42
81 of them.
198 of them.
The prime numbers from 11 to 97.
All two digit prime numbers have two factors only, starting with 11, 13, 17, 19.......
No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.
There are 21 two-digit prime numbers.
no it is a prime number (prime means its multiples are only 1 and itself composite numbers can have multiples of many other things)
There are 30 two-digit multiples of 3 plus 18 two-digit multiples of 5 minus 6 two-digit multiples of both. Answer: 42
All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.
60 numbers
73 is the largest two-digit number that is prime and has prime numbers for both of its digits.
81
81 of them.
679 is the product of the largest single-digit prime number and the largest two-digit prime number.