Q: Is 487,431 a Prime Number?
A: No, 487,431 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 487431 can be evenly divided by 1 3 7 9 21 27 63 189 2,579 7,737 18,053 23,211 54,159 69,633 162,477 and 487,431, with no remainder.
Since 487,431 cannot be divided by just 1 and 487,431, it is not a prime number.