Q: Is 551,908 a Prime Number?
A: No, 551,908 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 551908 can be evenly divided by 1 2 4 7 14 23 28 46 92 161 322 644 857 1,714 3,428 5,999 11,998 19,711 23,996 39,422 78,844 137,977 275,954 and 551,908, with no remainder.
Since 551,908 cannot be divided by just 1 and 551,908, it is not a prime number.