Q: Is 688,920 a Prime Number?
A: No, 688,920 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 688920 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 5,741 11,482 17,223 22,964 28,705 34,446 45,928 57,410 68,892 86,115 114,820 137,784 172,230 229,640 344,460 and 688,920, with no remainder.
Since 688,920 cannot be divided by just 1 and 688,920, it is not a prime number.