Q: Is 513,216 a Prime Number?
A: No, 513,216 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 513216 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 81 88 96 99 108 132 144 162 176 192 198 216 243 264 288 297 324 352 396 432 486 528 576 594 648 704 729 792 864 891 972 1,056 1,188 1,296 1,458 1,584 1,728 1,782 1,944 2,112 2,376 2,592 2,673 2,916 3,168 3,564 3,888 4,752 5,184 5,346 5,832 6,336 7,128 7,776 8,019 9,504 10,692 11,664 14,256 15,552 16,038 19,008 21,384 23,328 28,512 32,076 42,768 46,656 57,024 64,152 85,536 128,304 171,072 256,608 and 513,216, with no remainder.
Since 513,216 cannot be divided by just 1 and 513,216, it is not a prime number.