Q: Is 345,680 a Prime Number?
A: No, 345,680 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 345680 can be evenly divided by 1 2 4 5 8 10 16 20 29 40 58 80 116 145 149 232 290 298 464 580 596 745 1,160 1,192 1,490 2,320 2,384 2,980 4,321 5,960 8,642 11,920 17,284 21,605 34,568 43,210 69,136 86,420 172,840 and 345,680, with no remainder.
Since 345,680 cannot be divided by just 1 and 345,680, it is not a prime number.