Q: Is 1,420,400 a Prime Number?
A: No, 1,420,400 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 1420400 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 53 67 80 100 106 134 200 212 265 268 335 400 424 530 536 670 848 1,060 1,072 1,325 1,340 1,675 2,120 2,650 2,680 3,350 3,551 4,240 5,300 5,360 6,700 7,102 10,600 13,400 14,204 17,755 21,200 26,800 28,408 35,510 56,816 71,020 88,775 142,040 177,550 284,080 355,100 710,200 and 1,420,400, with no remainder.
Since 1,420,400 cannot be divided by just 1 and 1,420,400, it is not a prime number.