Q: Is 315,315 a Prime Number?
A: No, 315,315 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 315315 can be evenly divided by 1 3 5 7 9 11 13 15 21 33 35 39 45 49 55 63 65 77 91 99 105 117 143 147 165 195 231 245 273 315 385 429 441 455 495 539 585 637 693 715 735 819 1,001 1,155 1,287 1,365 1,617 1,911 2,145 2,205 2,695 3,003 3,185 3,465 4,095 4,851 5,005 5,733 6,435 7,007 8,085 9,009 9,555 15,015 21,021 24,255 28,665 35,035 45,045 63,063 105,105 and 315,315, with no remainder.
Since 315,315 cannot be divided by just 1 and 315,315, it is not a prime number.