Q: Is 555,000 a Prime Number?
A: No, 555,000 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 555000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 25 30 37 40 50 60 74 75 100 111 120 125 148 150 185 200 222 250 296 300 370 375 444 500 555 600 625 740 750 888 925 1,000 1,110 1,250 1,480 1,500 1,850 1,875 2,220 2,500 2,775 3,000 3,700 3,750 4,440 4,625 5,000 5,550 7,400 7,500 9,250 11,100 13,875 15,000 18,500 22,200 23,125 27,750 37,000 46,250 55,500 69,375 92,500 111,000 138,750 185,000 277,500 and 555,000, with no remainder.
Since 555,000 cannot be divided by just 1 and 555,000, it is not a prime number.