Q: Is 721,992 a Prime Number?
A: No, 721,992 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 721992 can be evenly divided by 1 2 3 4 6 8 12 24 67 134 201 268 402 449 536 804 898 1,347 1,608 1,796 2,694 3,592 5,388 10,776 30,083 60,166 90,249 120,332 180,498 240,664 360,996 and 721,992, with no remainder.
Since 721,992 cannot be divided by just 1 and 721,992, it is not a prime number.