Q: Is 428,580 a Prime Number?
A: No, 428,580 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 428580 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2,381 4,762 7,143 9,524 11,905 14,286 21,429 23,810 28,572 35,715 42,858 47,620 71,430 85,716 107,145 142,860 214,290 and 428,580, with no remainder.
Since 428,580 cannot be divided by just 1 and 428,580, it is not a prime number.