Q: Is 1,438,632 a Prime Number?
A: No, 1,438,632 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 1438632 can be evenly divided by 1 2 3 4 6 8 9 12 13 18 24 26 29 36 39 52 53 58 72 78 87 104 106 116 117 156 159 174 212 232 234 261 312 318 348 377 424 468 477 522 636 689 696 754 936 954 1,044 1,131 1,272 1,378 1,508 1,537 1,908 2,067 2,088 2,262 2,756 3,016 3,074 3,393 3,816 4,134 4,524 4,611 5,512 6,148 6,201 6,786 8,268 9,048 9,222 12,296 12,402 13,572 13,833 16,536 18,444 19,981 24,804 27,144 27,666 36,888 39,962 49,608 55,332 59,943 79,924 110,664 119,886 159,848 179,829 239,772 359,658 479,544 719,316 and 1,438,632, with no remainder.
Since 1,438,632 cannot be divided by just 1 and 1,438,632, it is not a prime number.