Q: Is 143,920 a Prime Number?
A: No, 143,920 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 143920 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 257 280 514 560 1,028 1,285 1,799 2,056 2,570 3,598 4,112 5,140 7,196 8,995 10,280 14,392 17,990 20,560 28,784 35,980 71,960 and 143,920, with no remainder.
Since 143,920 cannot be divided by just 1 and 143,920, it is not a prime number.