Q: Is 1,521,920 a Prime Number?
A: No, 1,521,920 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 1521920 can be evenly divided by 1 2 4 5 8 10 16 20 29 32 40 41 58 64 80 82 116 128 145 160 164 205 232 256 290 320 328 410 464 580 640 656 820 928 1,160 1,189 1,280 1,312 1,640 1,856 2,320 2,378 2,624 3,280 3,712 4,640 4,756 5,248 5,945 6,560 7,424 9,280 9,512 10,496 11,890 13,120 18,560 19,024 23,780 26,240 37,120 38,048 47,560 52,480 76,096 95,120 152,192 190,240 304,384 380,480 760,960 and 1,521,920, with no remainder.
Since 1,521,920 cannot be divided by just 1 and 1,521,920, it is not a prime number.