Q: Is 493,640 a Prime Number?
A: No, 493,640 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 493640 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 41 43 56 70 82 86 140 164 172 205 215 280 287 301 328 344 410 430 574 602 820 860 1,148 1,204 1,435 1,505 1,640 1,720 1,763 2,296 2,408 2,870 3,010 3,526 5,740 6,020 7,052 8,815 11,480 12,040 12,341 14,104 17,630 24,682 35,260 49,364 61,705 70,520 98,728 123,410 246,820 and 493,640, with no remainder.
Since 493,640 cannot be divided by just 1 and 493,640, it is not a prime number.