Q: Is 42,870 a Prime Number?
A: No, 42,870 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 42870 can be evenly divided by 1 2 3 5 6 10 15 30 1,429 2,858 4,287 7,145 8,574 14,290 21,435 and 42,870, with no remainder.
Since 42,870 cannot be divided by just 1 and 42,870, it is not a prime number.