Q: Is 814,720 a Prime Number?
A: No, 814,720 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 814720 can be evenly divided by 1 2 4 5 8 10 16 19 20 32 38 40 64 67 76 80 95 128 134 152 160 190 268 304 320 335 380 536 608 640 670 760 1,072 1,216 1,273 1,340 1,520 2,144 2,432 2,546 2,680 3,040 4,288 5,092 5,360 6,080 6,365 8,576 10,184 10,720 12,160 12,730 20,368 21,440 25,460 40,736 42,880 50,920 81,472 101,840 162,944 203,680 407,360 and 814,720, with no remainder.
Since 814,720 cannot be divided by just 1 and 814,720, it is not a prime number.