Q: Is 1,820,320 a Prime Number?
A: No, 1,820,320 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 1820320 can be evenly divided by 1 2 4 5 8 10 16 20 31 32 40 62 80 124 155 160 248 310 367 496 620 734 992 1,240 1,468 1,835 2,480 2,936 3,670 4,960 5,872 7,340 11,377 11,744 14,680 22,754 29,360 45,508 56,885 58,720 91,016 113,770 182,032 227,540 364,064 455,080 910,160 and 1,820,320, with no remainder.
Since 1,820,320 cannot be divided by just 1 and 1,820,320, it is not a prime number.