41, 43
59, 61
71, 73
5, 17 and 23.
The numbers are 28 and 29.
10, 20, 30, 40, 50, 60, 70, 80, 90
Meles zenawi , lord of a war
Prime numbers are whole numbers evenly divisible only by themselves and 1. By convention, 1 is not considered a prime number. Zero cannot be divided by itself because division by 0 is not allowed so it cannot meet the definition of being prime.
reciprocal
One-half and two.
Additive inverses
29, 29, 29
he is obvously trying not to let you know he is looking at you
30 and 45
No it isn't, it's divisible by 10 and 2 and 5. Also, No 780 is not a prime number. A prime number is defined as a number whos divisbility is 1 and its self.