Q: Is 171,640 a Prime Number?
A: No, 171,640 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 171640 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 613 1,226 2,452 3,065 4,291 4,904 6,130 8,582 12,260 17,164 21,455 24,520 34,328 42,910 85,820 and 171,640, with no remainder.
Since 171,640 cannot be divided by just 1 and 171,640, it is not a prime number.