Q: Is 1,423,440 a Prime Number?
A: No, 1,423,440 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 1423440 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 659 720 1,080 1,318 1,977 2,160 2,636 3,295 3,954 5,272 5,931 6,590 7,908 9,885 10,544 11,862 13,180 15,816 17,793 19,770 23,724 26,360 29,655 31,632 35,586 39,540 47,448 52,720 59,310 71,172 79,080 88,965 94,896 118,620 142,344 158,160 177,930 237,240 284,688 355,860 474,480 711,720 and 1,423,440, with no remainder.
Since 1,423,440 cannot be divided by just 1 and 1,423,440, it is not a prime number.