Q: Is 5,421,040 a Prime Number?
A: No, 5,421,040 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 5421040 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 67,763 135,526 271,052 338,815 542,104 677,630 1,084,208 1,355,260 2,710,520 and 5,421,040, with no remainder.
Since 5,421,040 cannot be divided by just 1 and 5,421,040, it is not a prime number.