Q: Is 1,378,240 a Prime Number?
A: No, 1,378,240 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 1378240 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 59 64 73 80 118 146 160 236 292 295 320 365 472 584 590 730 944 1,168 1,180 1,460 1,888 2,336 2,360 2,920 3,776 4,307 4,672 4,720 5,840 8,614 9,440 11,680 17,228 18,880 21,535 23,360 34,456 43,070 68,912 86,140 137,824 172,280 275,648 344,560 689,120 and 1,378,240, with no remainder.
Since 1,378,240 cannot be divided by just 1 and 1,378,240, it is not a prime number.