Q: Is 2,947,840 a Prime Number?
A: No, 2,947,840 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 2947840 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 32 35 40 47 49 56 64 70 80 94 98 112 128 140 160 188 196 224 235 245 256 280 320 329 376 392 448 470 490 560 640 658 752 784 896 940 980 1,120 1,280 1,316 1,504 1,568 1,645 1,792 1,880 1,960 2,240 2,303 2,632 3,008 3,136 3,290 3,760 3,920 4,480 4,606 5,264 6,016 6,272 6,580 7,520 7,840 8,960 9,212 10,528 11,515 12,032 12,544 13,160 15,040 15,680 18,424 21,056 23,030 26,320 30,080 31,360 36,848 42,112 46,060 52,640 60,160 62,720 73,696 84,224 92,120 105,280 147,392 184,240 210,560 294,784 368,480 421,120 589,568 736,960 1,473,920 and 2,947,840, with no remainder.
Since 2,947,840 cannot be divided by just 1 and 2,947,840, it is not a prime number.