Q: Is 161,535 a Prime Number?
A: No, 161,535 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 161535 can be evenly divided by 1 3 5 11 15 33 55 89 121 165 267 363 445 605 979 1,335 1,815 2,937 4,895 10,769 14,685 32,307 53,845 and 161,535, with no remainder.
Since 161,535 cannot be divided by just 1 and 161,535, it is not a prime number.