Q: Is 355,520 a Prime Number?
A: No, 355,520 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 355520 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 101 110 160 176 202 220 320 352 404 440 505 704 808 880 1,010 1,111 1,616 1,760 2,020 2,222 3,232 3,520 4,040 4,444 5,555 6,464 8,080 8,888 11,110 16,160 17,776 22,220 32,320 35,552 44,440 71,104 88,880 177,760 and 355,520, with no remainder.
Since 355,520 cannot be divided by just 1 and 355,520, it is not a prime number.