Q: Is 431,340 a Prime Number?
A: No, 431,340 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 431340 can be evenly divided by 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 78 79 84 91 105 130 140 156 158 182 195 210 237 260 273 316 364 390 395 420 455 474 546 553 780 790 910 948 1,027 1,092 1,106 1,185 1,365 1,580 1,659 1,820 2,054 2,212 2,370 2,730 2,765 3,081 3,318 4,108 4,740 5,135 5,460 5,530 6,162 6,636 7,189 8,295 10,270 11,060 12,324 14,378 15,405 16,590 20,540 21,567 28,756 30,810 33,180 35,945 43,134 61,620 71,890 86,268 107,835 143,780 215,670 and 431,340, with no remainder.
Since 431,340 cannot be divided by just 1 and 431,340, it is not a prime number.