Q: Is 431,424 a Prime Number?
A: No, 431,424 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 431424 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 107 112 126 144 168 192 214 224 252 288 321 336 428 448 504 576 642 672 749 856 963 1,008 1,284 1,344 1,498 1,712 1,926 2,016 2,247 2,568 2,996 3,424 3,852 4,032 4,494 5,136 5,992 6,741 6,848 7,704 8,988 10,272 11,984 13,482 15,408 17,976 20,544 23,968 26,964 30,816 35,952 47,936 53,928 61,632 71,904 107,856 143,808 215,712 and 431,424, with no remainder.
Since 431,424 cannot be divided by just 1 and 431,424, it is not a prime number.