17+5+4
The sum of the digits in 64,793 is 29.
No single number is equal to 29 except 29.
It's unique in that way.
20-2-1
10 + 10 + 9 = 29
or 3x 5 + 14 = 29
29
They are 29, 30 and 31.
29
51 + 29 = 80
They are: 29+5 = 34
29+31 = 60
They are: 29+31 = 60
29
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.
29 and 3
13, 19, 23, 29
29