Q: Is 166,740 a Prime Number?
A: No, 166,740 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 166740 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 397 420 794 1,191 1,588 1,985 2,382 2,779 3,970 4,764 5,558 5,955 7,940 8,337 11,116 11,910 13,895 16,674 23,820 27,790 33,348 41,685 55,580 83,370 and 166,740, with no remainder.
Since 166,740 cannot be divided by just 1 and 166,740, it is not a prime number.