Q: Is 2,123,920 a Prime Number?
A: No, 2,123,920 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 2123920 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 139 191 278 382 556 695 764 955 1,112 1,390 1,528 1,910 2,224 2,780 3,056 3,820 5,560 7,640 11,120 15,280 26,549 53,098 106,196 132,745 212,392 265,490 424,784 530,980 1,061,960 and 2,123,920, with no remainder.
Since 2,123,920 cannot be divided by just 1 and 2,123,920, it is not a prime number.