Q: Is 513,128 a Prime Number?
A: No, 513,128 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 513128 can be evenly divided by 1 2 4 7 8 11 14 17 22 28 34 44 49 56 68 77 88 98 119 136 154 187 196 238 308 343 374 392 476 539 616 686 748 833 952 1,078 1,309 1,372 1,496 1,666 2,156 2,618 2,744 3,332 3,773 4,312 5,236 5,831 6,664 7,546 9,163 10,472 11,662 15,092 18,326 23,324 30,184 36,652 46,648 64,141 73,304 128,282 256,564 and 513,128, with no remainder.
Since 513,128 cannot be divided by just 1 and 513,128, it is not a prime number.