Q: Is 64,400 a Prime Number?
A: No, 64,400 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 64400 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 23 25 28 35 40 46 50 56 70 80 92 100 112 115 140 161 175 184 200 230 280 322 350 368 400 460 560 575 644 700 805 920 1,150 1,288 1,400 1,610 1,840 2,300 2,576 2,800 3,220 4,025 4,600 6,440 8,050 9,200 12,880 16,100 32,200 and 64,400, with no remainder.
Since 64,400 cannot be divided by just 1 and 64,400, it is not a prime number.