Q: Is 814,820 a Prime Number?
A: No, 814,820 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 814820 can be evenly divided by 1 2 4 5 10 20 131 262 311 524 622 655 1,244 1,310 1,555 2,620 3,110 6,220 40,741 81,482 162,964 203,705 407,410 and 814,820, with no remainder.
Since 814,820 cannot be divided by just 1 and 814,820, it is not a prime number.