Q: Is 820,620 a Prime Number?
A: No, 820,620 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 820620 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 47 60 90 94 97 141 180 188 194 235 282 291 388 423 470 485 564 582 705 846 873 940 970 1,164 1,410 1,455 1,692 1,746 1,940 2,115 2,820 2,910 3,492 4,230 4,365 4,559 5,820 8,460 8,730 9,118 13,677 17,460 18,236 22,795 27,354 41,031 45,590 54,708 68,385 82,062 91,180 136,770 164,124 205,155 273,540 410,310 and 820,620, with no remainder.
Since 820,620 cannot be divided by just 1 and 820,620, it is not a prime number.