Q: Is 171,520 a Prime Number?
A: No, 171,520 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 171520 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 67 80 128 134 160 256 268 320 335 512 536 640 670 1,072 1,280 1,340 2,144 2,560 2,680 4,288 5,360 8,576 10,720 17,152 21,440 34,304 42,880 85,760 and 171,520, with no remainder.
Since 171,520 cannot be divided by just 1 and 171,520, it is not a prime number.