Q: Is 307,840 a Prime Number?
A: No, 307,840 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 307840 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 32 37 40 52 64 65 74 80 104 128 130 148 160 185 208 260 296 320 370 416 481 520 592 640 740 832 962 1,040 1,184 1,480 1,664 1,924 2,080 2,368 2,405 2,960 3,848 4,160 4,736 4,810 5,920 7,696 8,320 9,620 11,840 15,392 19,240 23,680 30,784 38,480 61,568 76,960 153,920 and 307,840, with no remainder.
Since 307,840 cannot be divided by just 1 and 307,840, it is not a prime number.