Q: Is 535,840 a Prime Number?
A: No, 535,840 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 535840 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 197 272 340 394 544 680 788 985 1,360 1,576 1,970 2,720 3,152 3,349 3,940 6,304 6,698 7,880 13,396 15,760 16,745 26,792 31,520 33,490 53,584 66,980 107,168 133,960 267,920 and 535,840, with no remainder.
Since 535,840 cannot be divided by just 1 and 535,840, it is not a prime number.