Q: Is 121,500 a Prime Number?
A: No, 121,500 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 121500 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 125 135 150 162 180 225 243 250 270 300 324 375 405 450 486 500 540 675 750 810 900 972 1,125 1,215 1,350 1,500 1,620 2,025 2,250 2,430 2,700 3,375 4,050 4,500 4,860 6,075 6,750 8,100 10,125 12,150 13,500 20,250 24,300 30,375 40,500 60,750 and 121,500, with no remainder.
Since 121,500 cannot be divided by just 1 and 121,500, it is not a prime number.