Q: Is 667,000 a Prime Number?
A: No, 667,000 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 667000 can be evenly divided by 1 2 4 5 8 10 20 23 25 29 40 46 50 58 92 100 115 116 125 145 184 200 230 232 250 290 460 500 575 580 667 725 920 1,000 1,150 1,160 1,334 1,450 2,300 2,668 2,875 2,900 3,335 3,625 4,600 5,336 5,750 5,800 6,670 7,250 11,500 13,340 14,500 16,675 23,000 26,680 29,000 33,350 66,700 83,375 133,400 166,750 333,500 and 667,000, with no remainder.
Since 667,000 cannot be divided by just 1 and 667,000, it is not a prime number.