Q: Is 4,223,240 a Prime Number?
A: No, 4,223,240 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 4223240 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 15,083 30,166 60,332 75,415 105,581 120,664 150,830 211,162 301,660 422,324 527,905 603,320 844,648 1,055,810 2,111,620 and 4,223,240, with no remainder.
Since 4,223,240 cannot be divided by just 1 and 4,223,240, it is not a prime number.