Q: Is 1,641,724 a Prime Number?
A: No, 1,641,724 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 1641724 can be evenly divided by 1 2 4 7 14 17 28 34 68 119 238 476 3,449 6,898 13,796 24,143 48,286 58,633 96,572 117,266 234,532 410,431 820,862 and 1,641,724, with no remainder.
Since 1,641,724 cannot be divided by just 1 and 1,641,724, it is not a prime number.