Q: Is 345,345 a Prime Number?
A: No, 345,345 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 345345 can be evenly divided by 1 3 5 7 11 13 15 21 23 33 35 39 55 65 69 77 91 105 115 143 161 165 195 231 253 273 299 345 385 429 455 483 715 759 805 897 1,001 1,155 1,265 1,365 1,495 1,771 2,093 2,145 2,415 3,003 3,289 3,795 4,485 5,005 5,313 6,279 8,855 9,867 10,465 15,015 16,445 23,023 26,565 31,395 49,335 69,069 115,115 and 345,345, with no remainder.
Since 345,345 cannot be divided by just 1 and 345,345, it is not a prime number.