Q: Is 1,388,740 a Prime Number?
A: No, 1,388,740 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 1388740 can be evenly divided by 1 2 4 5 10 20 23 46 92 115 230 460 3,019 6,038 12,076 15,095 30,190 60,380 69,437 138,874 277,748 347,185 694,370 and 1,388,740, with no remainder.
Since 1,388,740 cannot be divided by just 1 and 1,388,740, it is not a prime number.