Q: Is 420,816 a Prime Number?
A: No, 420,816 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 420816 can be evenly divided by 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 797 1,594 2,391 3,188 4,782 6,376 8,767 9,564 12,752 17,534 19,128 26,301 35,068 38,256 52,602 70,136 105,204 140,272 210,408 and 420,816, with no remainder.
Since 420,816 cannot be divided by just 1 and 420,816, it is not a prime number.