Q: Is 421,750 a Prime Number?
A: No, 421,750 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 421750 can be evenly divided by 1 2 5 7 10 14 25 35 50 70 125 175 241 250 350 482 875 1,205 1,687 1,750 2,410 3,374 6,025 8,435 12,050 16,870 30,125 42,175 60,250 84,350 210,875 and 421,750, with no remainder.
Since 421,750 cannot be divided by just 1 and 421,750, it is not a prime number.