Q: Is 321,870 a Prime Number?
A: No, 321,870 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 321870 can be evenly divided by 1 2 3 5 6 10 15 30 10,729 21,458 32,187 53,645 64,374 107,290 160,935 and 321,870, with no remainder.
Since 321,870 cannot be divided by just 1 and 321,870, it is not a prime number.