Q: Is 581,920 a Prime Number?
A: No, 581,920 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 581920 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 3,637 7,274 14,548 18,185 29,096 36,370 58,192 72,740 116,384 145,480 290,960 and 581,920, with no remainder.
Since 581,920 cannot be divided by just 1 and 581,920, it is not a prime number.