Q: Is 61,820 a Prime Number?
A: No, 61,820 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 61820 can be evenly divided by 1 2 4 5 10 11 20 22 44 55 110 220 281 562 1,124 1,405 2,810 3,091 5,620 6,182 12,364 15,455 30,910 and 61,820, with no remainder.
Since 61,820 cannot be divided by just 1 and 61,820, it is not a prime number.