Q: Is 691,424 a Prime Number?
A: No, 691,424 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 691424 can be evenly divided by 1 2 4 8 16 17 31 32 34 41 62 68 82 124 136 164 248 272 328 496 527 544 656 697 992 1,054 1,271 1,312 1,394 2,108 2,542 2,788 4,216 5,084 5,576 8,432 10,168 11,152 16,864 20,336 21,607 22,304 40,672 43,214 86,428 172,856 345,712 and 691,424, with no remainder.
Since 691,424 cannot be divided by just 1 and 691,424, it is not a prime number.