Q: Is 275,420 a Prime Number?
A: No, 275,420 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 275420 can be evenly divided by 1 2 4 5 10 20 47 94 188 235 293 470 586 940 1,172 1,465 2,930 5,860 13,771 27,542 55,084 68,855 137,710 and 275,420, with no remainder.
Since 275,420 cannot be divided by just 1 and 275,420, it is not a prime number.