Many many answers. Starting with ...
three
3 + 10 = 13
3 + 20 = 23
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47,
53, 59, 61, 67, 71, 73, 79, 83, 89, 97 are prime numbers up to 100
so same with ...
9 (19 and 29)
21 (31 and 41)
27 (37 and 47)
33 (43 and 53)
51 (61 and 71)
63 (73 and 83)
69 (79 and 89)
and so on ...
3
Two-digit prime numbers whose digits add up to 10 are:193773
But 5+5 = 10 and 5 is a prime number
There are no prime numbers greater than 10 that add up to 29. Since all prime numbers greater than 2 are odd numbers, no two prime numbers greater than 2 can have an even number for their sum.
No multiples of 10 are prime.
7
3
7 and 3
3, 13 and 23 are prime numbers.
Two-digit prime numbers whose digits add up to 10 are:193773
But 5+5 = 10 and 5 is a prime number
This question doesn't quite make sense; a prime number has no factors.If you meant a prime whose digits sum to 10 it is 37.
28 (add on the prime number 11)
There are no prime numbers greater than 10 that add up to 29. Since all prime numbers greater than 2 are odd numbers, no two prime numbers greater than 2 can have an even number for their sum.
The number 10 is not prime. A prime number is divisble by itself and one, only. 10 is divisible by 1, by 2, and by 5. Thus, 10 is not a prime number.
no
No multiples of 10 are prime.