Q: Is 1,521,880 a Prime Number?
A: No, 1,521,880 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 1521880 can be evenly divided by 1 2 4 5 8 10 20 40 38,047 76,094 152,188 190,235 304,376 380,470 760,940 and 1,521,880, with no remainder.
Since 1,521,880 cannot be divided by just 1 and 1,521,880, it is not a prime number.