Q: Is 678,900 a Prime Number?
A: No, 678,900 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 678900 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 25 30 31 50 60 62 73 75 93 100 124 146 150 155 186 219 292 300 310 365 372 438 465 620 730 775 876 930 1,095 1,460 1,550 1,825 1,860 2,190 2,263 2,325 3,100 3,650 4,380 4,526 4,650 5,475 6,789 7,300 9,052 9,300 10,950 11,315 13,578 21,900 22,630 27,156 33,945 45,260 56,575 67,890 113,150 135,780 169,725 226,300 339,450 and 678,900, with no remainder.
Since 678,900 cannot be divided by just 1 and 678,900, it is not a prime number.