Q: Is 8,400 a Prime Number?
A: No, 8,400 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 8400 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 35 40 42 48 50 56 60 70 75 80 84 100 105 112 120 140 150 168 175 200 210 240 280 300 336 350 400 420 525 560 600 700 840 1,050 1,200 1,400 1,680 2,100 2,800 4,200 and 8,400, with no remainder.
Since 8,400 cannot be divided by just 1 and 8,400, it is not a prime number.