Q: Is 628,672 a Prime Number?
A: No, 628,672 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 628672 can be evenly divided by 1 2 4 8 11 16 19 22 32 38 44 47 64 76 88 94 152 176 188 209 304 352 376 418 517 608 704 752 836 893 1,034 1,216 1,504 1,672 1,786 2,068 3,008 3,344 3,572 4,136 6,688 7,144 8,272 9,823 13,376 14,288 16,544 19,646 28,576 33,088 39,292 57,152 78,584 157,168 314,336 and 628,672, with no remainder.
Since 628,672 cannot be divided by just 1 and 628,672, it is not a prime number.