Q: Is 165,420 a Prime Number?
A: No, 165,420 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 165420 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 919 1,838 2,757 3,676 4,595 5,514 8,271 9,190 11,028 13,785 16,542 18,380 27,570 33,084 41,355 55,140 82,710 and 165,420, with no remainder.
Since 165,420 cannot be divided by just 1 and 165,420, it is not a prime number.