There are a total of 69 composite numbers between 10 and 99. These are:
10, 12, 14, 15, 16, 18, 20, 21, 22, 24
25, 26, 27, 28, 30, 32, 33, 34, 35, 36
38, 39, 40, 42, 44, 45, 46, 48, 49, 50
51, 52, 54, 55, 56, 57, 58, 60, 62, 63
64, 65, 66, 68, 69, 70, 72, 74, 75, 76
77, 78, 80, 81, 82, 84, 85, 86, 87, 88
90, 91, 92, 93, 94, 95, 96, 98, 99
43 is a 2-digit odd number. It is prime.
43 is a 2 digit odd number but it is a prime number
No, it is not.
No, it is not.
It is impossible to list the infinite number of composite odd numbers.
would it will be 15
No, it is not.
42 is composite, 43 is prime.
43 is a 2-digit odd number. It is prime.
43 is a 2 digit odd number but it is a prime number
No, it is not.
No, it is not.
No, it is not.
I need help
23?
Look at the last digit. If the last digit of a number is even, the whole number is even. If the last digit is odd, the number is odd.
Look at the last digit. If a number's last digit is even, the number is even. If the last digit is odd, the number is odd.