Q: Is 1,066,400 a Prime Number?
A: No, 1,066,400 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 1066400 can be evenly divided by 1 2 4 5 8 10 16 20 25 31 32 40 43 50 62 80 86 100 124 155 160 172 200 215 248 310 344 400 430 496 620 688 775 800 860 992 1,075 1,240 1,333 1,376 1,550 1,720 2,150 2,480 2,666 3,100 3,440 4,300 4,960 5,332 6,200 6,665 6,880 8,600 10,664 12,400 13,330 17,200 21,328 24,800 26,660 33,325 34,400 42,656 53,320 66,650 106,640 133,300 213,280 266,600 533,200 and 1,066,400, with no remainder.
Since 1,066,400 cannot be divided by just 1 and 1,066,400, it is not a prime number.