19 + 5 + 2
If combining digits to form 2-digit numbers is allowed then some solutions are :- 21 + 3 - 5 = 19 23 + 1 - 5 = 19
They are 2, 3, 5, 7, 11, 13, 17, 19 and 23.
2 3 5 7 11 13 17 19.
They are: 2 and 19
2,3,5,7,11,13,17 &19 - they're all the prime numbers !
19 + 5 + 2
19 + 5 + 2
The positive numbers you gave are... 2, 3, 5, 7, 11, 17, 19 Their negative partners are... -2, -3, -5, -7, -11, -17, -19
If combining digits to form 2-digit numbers is allowed then some solutions are :- 21 + 3 - 5 = 19 23 + 1 - 5 = 19
The prime numbers from 1 to 19 are 2, 3, 5, 7, 11, 13, 17, and 19.
Prime numbers less than 19:2, 3, 5, 7, 11, 13, 17The only combination that works is 2 + 17 = 19
They are 2, 3, 5, 7, 11, 13, 17, 19 and 23.
2 3 5 7 11 13 17 19.
The prime factors of 4560 are: 2, 3, 5 and 19
The prime numbers between 1 and 20 are: 2 3 5 7 11 13 17 19.
2 3 5 7 11 13 17 19.