Q: Is 542,500 a Prime Number?
A: No, 542,500 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 542500 can be evenly divided by 1 2 4 5 7 10 14 20 25 28 31 35 50 62 70 100 124 125 140 155 175 217 250 310 350 434 500 620 625 700 775 868 875 1,085 1,250 1,550 1,750 2,170 2,500 3,100 3,500 3,875 4,340 4,375 5,425 7,750 8,750 10,850 15,500 17,500 19,375 21,700 27,125 38,750 54,250 77,500 108,500 135,625 271,250 and 542,500, with no remainder.
Since 542,500 cannot be divided by just 1 and 542,500, it is not a prime number.