Q: Is 1,203,125 a Prime Number?
A: No, 1,203,125 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 1203125 can be evenly divided by 1 5 7 11 25 35 55 77 125 175 275 385 625 875 1,375 1,925 3,125 4,375 6,875 9,625 15,625 21,875 34,375 48,125 109,375 171,875 240,625 and 1,203,125, with no remainder.
Since 1,203,125 cannot be divided by just 1 and 1,203,125, it is not a prime number.