Q: Is 859,740 a Prime Number?
A: No, 859,740 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 859740 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 23 28 30 35 42 46 60 69 70 84 89 92 105 115 138 140 161 178 210 230 267 276 322 345 356 420 445 460 483 534 623 644 690 805 890 966 1,068 1,246 1,335 1,380 1,610 1,780 1,869 1,932 2,047 2,415 2,492 2,670 3,115 3,220 3,738 4,094 4,830 5,340 6,141 6,230 7,476 8,188 9,345 9,660 10,235 12,282 12,460 14,329 18,690 20,470 24,564 28,658 30,705 37,380 40,940 42,987 57,316 61,410 71,645 85,974 122,820 143,290 171,948 214,935 286,580 429,870 and 859,740, with no remainder.
Since 859,740 cannot be divided by just 1 and 859,740, it is not a prime number.