Q: Is 672,408 a Prime Number?
A: No, 672,408 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 672408 can be evenly divided by 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 88 99 108 132 198 216 264 283 297 396 566 594 792 849 1,132 1,188 1,698 2,264 2,376 2,547 3,113 3,396 5,094 6,226 6,792 7,641 9,339 10,188 12,452 15,282 18,678 20,376 24,904 28,017 30,564 37,356 56,034 61,128 74,712 84,051 112,068 168,102 224,136 336,204 and 672,408, with no remainder.
Since 672,408 cannot be divided by just 1 and 672,408, it is not a prime number.