Q: Is 1,345,920 a Prime Number?
A: No, 1,345,920 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 1345920 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 701 960 1,402 1,920 2,103 2,804 3,505 4,206 5,608 7,010 8,412 10,515 11,216 14,020 16,824 21,030 22,432 28,040 33,648 42,060 44,864 56,080 67,296 84,120 89,728 112,160 134,592 168,240 224,320 269,184 336,480 448,640 672,960 and 1,345,920, with no remainder.
Since 1,345,920 cannot be divided by just 1 and 1,345,920, it is not a prime number.