Q: Is 2,666,624 a Prime Number?
A: No, 2,666,624 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 2666624 can be evenly divided by 1 2 4 8 16 32 64 83 128 166 251 332 502 664 1,004 1,328 2,008 2,656 4,016 5,312 8,032 10,624 16,064 20,833 32,128 41,666 83,332 166,664 333,328 666,656 1,333,312 and 2,666,624, with no remainder.
Since 2,666,624 cannot be divided by just 1 and 2,666,624, it is not a prime number.