Q: Is 1,238,440 a Prime Number?
A: No, 1,238,440 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 1238440 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 4,423 8,846 17,692 22,115 30,961 35,384 44,230 61,922 88,460 123,844 154,805 176,920 247,688 309,610 619,220 and 1,238,440, with no remainder.
Since 1,238,440 cannot be divided by just 1 and 1,238,440, it is not a prime number.