Q: Is 378,880 a Prime Number?
A: No, 378,880 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 378880 can be evenly divided by 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 185 256 296 320 370 512 592 640 740 1,024 1,184 1,280 1,480 2,048 2,368 2,560 2,960 4,736 5,120 5,920 9,472 10,240 11,840 18,944 23,680 37,888 47,360 75,776 94,720 189,440 and 378,880, with no remainder.
Since 378,880 cannot be divided by just 1 and 378,880, it is not a prime number.