Q: Is 1,121,625 a Prime Number?
A: No, 1,121,625 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 1121625 can be evenly divided by 1 3 5 9 15 25 45 75 125 225 375 997 1,125 2,991 4,985 8,973 14,955 24,925 44,865 74,775 124,625 224,325 373,875 and 1,121,625, with no remainder.
Since 1,121,625 cannot be divided by just 1 and 1,121,625, it is not a prime number.