Q: Is 627,984 a Prime Number?
A: No, 627,984 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 627984 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 49 56 63 72 84 89 98 112 126 144 147 168 178 196 252 267 294 336 356 392 441 504 534 588 623 712 784 801 882 1,008 1,068 1,176 1,246 1,424 1,602 1,764 1,869 2,136 2,352 2,492 3,204 3,528 3,738 4,272 4,361 4,984 5,607 6,408 7,056 7,476 8,722 9,968 11,214 12,816 13,083 14,952 17,444 22,428 26,166 29,904 34,888 39,249 44,856 52,332 69,776 78,498 89,712 104,664 156,996 209,328 313,992 and 627,984, with no remainder.
Since 627,984 cannot be divided by just 1 and 627,984, it is not a prime number.