Q: Is 620,320 a Prime Number?
A: No, 620,320 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 620320 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 3,877 7,754 15,508 19,385 31,016 38,770 62,032 77,540 124,064 155,080 310,160 and 620,320, with no remainder.
Since 620,320 cannot be divided by just 1 and 620,320, it is not a prime number.