Q: Is 171,220 a Prime Number?
A: No, 171,220 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 171220 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 1,223 2,446 4,892 6,115 8,561 12,230 17,122 24,460 34,244 42,805 85,610 and 171,220, with no remainder.
Since 171,220 cannot be divided by just 1 and 171,220, it is not a prime number.