Q: Is 43,820 a Prime Number?
A: No, 43,820 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 43820 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 313 626 1,252 1,565 2,191 3,130 4,382 6,260 8,764 10,955 21,910 and 43,820, with no remainder.
Since 43,820 cannot be divided by just 1 and 43,820, it is not a prime number.