Q: Is 143,240 a Prime Number?
A: No, 143,240 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 143240 can be evenly divided by 1 2 4 5 8 10 20 40 3,581 7,162 14,324 17,905 28,648 35,810 71,620 and 143,240, with no remainder.
Since 143,240 cannot be divided by just 1 and 143,240, it is not a prime number.