Q: Is 1,624,428 a Prime Number?
A: No, 1,624,428 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 1624428 can be evenly divided by 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 89 108 117 156 169 178 234 267 338 351 356 468 507 534 676 702 801 1,014 1,068 1,157 1,404 1,521 1,602 2,028 2,314 2,403 3,042 3,204 3,471 4,563 4,628 4,806 6,084 6,942 9,126 9,612 10,413 13,884 15,041 18,252 20,826 30,082 31,239 41,652 45,123 60,164 62,478 90,246 124,956 135,369 180,492 270,738 406,107 541,476 812,214 and 1,624,428, with no remainder.
Since 1,624,428 cannot be divided by just 1 and 1,624,428, it is not a prime number.