Q: Is 812,820 a Prime Number?
A: No, 812,820 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 812820 can be evenly divided by 1 2 3 4 5 6 10 12 15 19 20 23 30 31 38 46 57 60 62 69 76 92 93 95 114 115 124 138 155 186 190 228 230 276 285 310 345 372 380 437 460 465 570 589 620 690 713 874 930 1,140 1,178 1,311 1,380 1,426 1,748 1,767 1,860 2,139 2,185 2,356 2,622 2,852 2,945 3,534 3,565 4,278 4,370 5,244 5,890 6,555 7,068 7,130 8,556 8,740 8,835 10,695 11,780 13,110 13,547 14,260 17,670 21,390 26,220 27,094 35,340 40,641 42,780 54,188 67,735 81,282 135,470 162,564 203,205 270,940 406,410 and 812,820, with no remainder.
Since 812,820 cannot be divided by just 1 and 812,820, it is not a prime number.