Q: Is 402,550 a Prime Number?
A: No, 402,550 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 402550 can be evenly divided by 1 2 5 10 25 50 83 97 166 194 415 485 830 970 2,075 2,425 4,150 4,850 8,051 16,102 40,255 80,510 201,275 and 402,550, with no remainder.
Since 402,550 cannot be divided by just 1 and 402,550, it is not a prime number.