Q: Is 388,500 a Prime Number?
A: No, 388,500 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 388500 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 37 42 50 60 70 74 75 84 100 105 111 125 140 148 150 175 185 210 222 250 259 300 350 370 375 420 444 500 518 525 555 700 740 750 777 875 925 1,036 1,050 1,110 1,295 1,500 1,554 1,750 1,850 2,100 2,220 2,590 2,625 2,775 3,108 3,500 3,700 3,885 4,625 5,180 5,250 5,550 6,475 7,770 9,250 10,500 11,100 12,950 13,875 15,540 18,500 19,425 25,900 27,750 32,375 38,850 55,500 64,750 77,700 97,125 129,500 194,250 and 388,500, with no remainder.
Since 388,500 cannot be divided by just 1 and 388,500, it is not a prime number.