Q: Is 1,616,720 a Prime Number?
A: No, 1,616,720 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 1616720 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 2,887 5,774 11,548 14,435 20,209 23,096 28,870 40,418 46,192 57,740 80,836 101,045 115,480 161,672 202,090 230,960 323,344 404,180 808,360 and 1,616,720, with no remainder.
Since 1,616,720 cannot be divided by just 1 and 1,616,720, it is not a prime number.