Q: Is 162,720 a Prime Number?
A: No, 162,720 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 162720 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 113 120 144 160 180 226 240 288 339 360 452 480 565 678 720 904 1,017 1,130 1,356 1,440 1,695 1,808 2,034 2,260 2,712 3,390 3,616 4,068 4,520 5,085 5,424 6,780 8,136 9,040 10,170 10,848 13,560 16,272 18,080 20,340 27,120 32,544 40,680 54,240 81,360 and 162,720, with no remainder.
Since 162,720 cannot be divided by just 1 and 162,720, it is not a prime number.