Q: Is 1,138,400 a Prime Number?
A: No, 1,138,400 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 1138400 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 1,423 2,846 5,692 7,115 11,384 14,230 22,768 28,460 35,575 45,536 56,920 71,150 113,840 142,300 227,680 284,600 569,200 and 1,138,400, with no remainder.
Since 1,138,400 cannot be divided by just 1 and 1,138,400, it is not a prime number.