Q: Is 553,720 a Prime Number?
A: No, 553,720 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 553720 can be evenly divided by 1 2 4 5 8 10 20 40 109 127 218 254 436 508 545 635 872 1,016 1,090 1,270 2,180 2,540 4,360 5,080 13,843 27,686 55,372 69,215 110,744 138,430 276,860 and 553,720, with no remainder.
Since 553,720 cannot be divided by just 1 and 553,720, it is not a prime number.