Q: Is 61,540 a Prime Number?
A: No, 61,540 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 61540 can be evenly divided by 1 2 4 5 10 17 20 34 68 85 170 181 340 362 724 905 1,810 3,077 3,620 6,154 12,308 15,385 30,770 and 61,540, with no remainder.
Since 61,540 cannot be divided by just 1 and 61,540, it is not a prime number.