Q: Is 85,400 a Prime Number?
A: No, 85,400 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 85400 can be evenly divided by 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 61 70 100 122 140 175 200 244 280 305 350 427 488 610 700 854 1,220 1,400 1,525 1,708 2,135 2,440 3,050 3,416 4,270 6,100 8,540 10,675 12,200 17,080 21,350 42,700 and 85,400, with no remainder.
Since 85,400 cannot be divided by just 1 and 85,400, it is not a prime number.