Q: Is 72,345 a Prime Number?
A: No, 72,345 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 72345 can be evenly divided by 1 3 5 7 13 15 21 35 39 53 65 91 105 159 195 265 273 371 455 689 795 1,113 1,365 1,855 2,067 3,445 4,823 5,565 10,335 14,469 24,115 and 72,345, with no remainder.
Since 72,345 cannot be divided by just 1 and 72,345, it is not a prime number.