Q: Is 165,540 a Prime Number?
A: No, 165,540 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 165540 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 31 60 62 89 93 124 155 178 186 267 310 356 372 445 465 534 620 890 930 1,068 1,335 1,780 1,860 2,670 2,759 5,340 5,518 8,277 11,036 13,795 16,554 27,590 33,108 41,385 55,180 82,770 and 165,540, with no remainder.
Since 165,540 cannot be divided by just 1 and 165,540, it is not a prime number.