Q: Is 550,640 a Prime Number?
A: No, 550,640 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 550640 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 6,883 13,766 27,532 34,415 55,064 68,830 110,128 137,660 275,320 and 550,640, with no remainder.
Since 550,640 cannot be divided by just 1 and 550,640, it is not a prime number.