Q: Is 672,816 a Prime Number?
A: No, 672,816 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 672816 can be evenly divided by 1 2 3 4 6 8 12 16 24 48 107 131 214 262 321 393 428 524 642 786 856 1,048 1,284 1,572 1,712 2,096 2,568 3,144 5,136 6,288 14,017 28,034 42,051 56,068 84,102 112,136 168,204 224,272 336,408 and 672,816, with no remainder.
Since 672,816 cannot be divided by just 1 and 672,816, it is not a prime number.