Q: Is 4,202,720 a Prime Number?
A: No, 4,202,720 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 4202720 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 26,267 52,534 105,068 131,335 210,136 262,670 420,272 525,340 840,544 1,050,680 2,101,360 and 4,202,720, with no remainder.
Since 4,202,720 cannot be divided by just 1 and 4,202,720, it is not a prime number.