Q: Is 1,423,740 a Prime Number?
A: No, 1,423,740 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 1423740 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 389 610 732 778 915 1,167 1,220 1,556 1,830 1,945 2,334 3,660 3,890 4,668 5,835 7,780 11,670 23,340 23,729 47,458 71,187 94,916 118,645 142,374 237,290 284,748 355,935 474,580 711,870 and 1,423,740, with no remainder.
Since 1,423,740 cannot be divided by just 1 and 1,423,740, it is not a prime number.