Q: Is 402,240 a Prime Number?
A: No, 402,240 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 402240 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 96 120 160 192 240 320 419 480 838 960 1,257 1,676 2,095 2,514 3,352 4,190 5,028 6,285 6,704 8,380 10,056 12,570 13,408 16,760 20,112 25,140 26,816 33,520 40,224 50,280 67,040 80,448 100,560 134,080 201,120 and 402,240, with no remainder.
Since 402,240 cannot be divided by just 1 and 402,240, it is not a prime number.