Q: Is 551,120 a Prime Number?
A: No, 551,120 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 551120 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 83 166 332 415 664 830 1,328 1,660 3,320 6,640 6,889 13,778 27,556 34,445 55,112 68,890 110,224 137,780 275,560 and 551,120, with no remainder.
Since 551,120 cannot be divided by just 1 and 551,120, it is not a prime number.