Q: Is 1,505,640 a Prime Number?
A: No, 1,505,640 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 1505640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 12,547 25,094 37,641 50,188 62,735 75,282 100,376 125,470 150,564 188,205 250,940 301,128 376,410 501,880 752,820 and 1,505,640, with no remainder.
Since 1,505,640 cannot be divided by just 1 and 1,505,640, it is not a prime number.