Q: Is 823,240 a Prime Number?
A: No, 823,240 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 823240 can be evenly divided by 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 1,871 3,742 7,484 9,355 14,968 18,710 20,581 37,420 41,162 74,840 82,324 102,905 164,648 205,810 411,620 and 823,240, with no remainder.
Since 823,240 cannot be divided by just 1 and 823,240, it is not a prime number.