Q: Is 563,840 a Prime Number?
A: No, 563,840 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 563840 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 881 1,762 3,524 4,405 7,048 8,810 14,096 17,620 28,192 35,240 56,384 70,480 112,768 140,960 281,920 and 563,840, with no remainder.
Since 563,840 cannot be divided by just 1 and 563,840, it is not a prime number.