Q: Is 2,122,720 a Prime Number?
A: No, 2,122,720 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 2122720 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 13,267 26,534 53,068 66,335 106,136 132,670 212,272 265,340 424,544 530,680 1,061,360 and 2,122,720, with no remainder.
Since 2,122,720 cannot be divided by just 1 and 2,122,720, it is not a prime number.