Q: Is 1,320,624 a Prime Number?
A: No, 1,320,624 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 1320624 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1,019 1,296 2,038 3,057 4,076 6,114 8,152 9,171 12,228 16,304 18,342 24,456 27,513 36,684 48,912 55,026 73,368 82,539 110,052 146,736 165,078 220,104 330,156 440,208 660,312 and 1,320,624, with no remainder.
Since 1,320,624 cannot be divided by just 1 and 1,320,624, it is not a prime number.