Q: Is 356,240 a Prime Number?
A: No, 356,240 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 356240 can be evenly divided by 1 2 4 5 8 10 16 20 40 61 73 80 122 146 244 292 305 365 488 584 610 730 976 1,168 1,220 1,460 2,440 2,920 4,453 4,880 5,840 8,906 17,812 22,265 35,624 44,530 71,248 89,060 178,120 and 356,240, with no remainder.
Since 356,240 cannot be divided by just 1 and 356,240, it is not a prime number.