Two-digit prime numbers whose digits add up to 10 are:193773
No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.
Assuming you mean digits and not didgets, the answer is 6.
96
Nine. The sum of the digits must be a multiple of 9; because of the repeated digits, this is only possible if the first two digits add up to 9.
The number is 85.
18
95, is the two digits after the last digit of the multiple of 5's.
Two-digit prime numbers whose digits add up to 10 are:193773
No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.
18
Assuming you mean digits and not didgets, the answer is 6.
96
96
11 x 9 = 99 two digits
Nine. The sum of the digits must be a multiple of 9; because of the repeated digits, this is only possible if the first two digits add up to 9.
40