Q: Is 331,520 a Prime Number?
A: No, 331,520 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 331520 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 32 35 37 40 56 64 70 74 80 112 128 140 148 160 185 224 256 259 280 296 320 370 448 518 560 592 640 740 896 1,036 1,120 1,184 1,280 1,295 1,480 1,792 2,072 2,240 2,368 2,590 2,960 4,144 4,480 4,736 5,180 5,920 8,288 8,960 9,472 10,360 11,840 16,576 20,720 23,680 33,152 41,440 47,360 66,304 82,880 165,760 and 331,520, with no remainder.
Since 331,520 cannot be divided by just 1 and 331,520, it is not a prime number.