Q: Is 165,720 a Prime Number?
A: No, 165,720 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 165720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1,381 2,762 4,143 5,524 6,905 8,286 11,048 13,810 16,572 20,715 27,620 33,144 41,430 55,240 82,860 and 165,720, with no remainder.
Since 165,720 cannot be divided by just 1 and 165,720, it is not a prime number.