Q: Is 71,643 a Prime Number?
A: No, 71,643 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 71643 can be evenly divided by 1 3 11 13 33 39 143 167 429 501 1,837 2,171 5,511 6,513 23,881 and 71,643, with no remainder.
Since 71,643 cannot be divided by just 1 and 71,643, it is not a prime number.