Q: Is 61,720 a Prime Number?
A: No, 61,720 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 61720 can be evenly divided by 1 2 4 5 8 10 20 40 1,543 3,086 6,172 7,715 12,344 15,430 30,860 and 61,720, with no remainder.
Since 61,720 cannot be divided by just 1 and 61,720, it is not a prime number.