Q: Is 8,423,000 a Prime Number?
A: No, 8,423,000 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 8423000 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1,000 8,423 16,846 33,692 42,115 67,384 84,230 168,460 210,575 336,920 421,150 842,300 1,052,875 1,684,600 2,105,750 4,211,500 and 8,423,000, with no remainder.
Since 8,423,000 cannot be divided by just 1 and 8,423,000, it is not a prime number.