Q: Is 1,387,770 a Prime Number?
A: No, 1,387,770 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 1387770 can be evenly divided by 1 2 3 5 6 10 15 30 167 277 334 501 554 831 835 1,002 1,385 1,662 1,670 2,505 2,770 4,155 5,010 8,310 46,259 92,518 138,777 231,295 277,554 462,590 693,885 and 1,387,770, with no remainder.
Since 1,387,770 cannot be divided by just 1 and 1,387,770, it is not a prime number.