Q: Is 172,120 a Prime Number?
A: No, 172,120 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 172120 can be evenly divided by 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 331 520 662 1,324 1,655 2,648 3,310 4,303 6,620 8,606 13,240 17,212 21,515 34,424 43,030 86,060 and 172,120, with no remainder.
Since 172,120 cannot be divided by just 1 and 172,120, it is not a prime number.