Q: Is 672,921 a Prime Number?
A: No, 672,921 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 672921 can be evenly divided by 1 3 9 27 24,923 74,769 224,307 and 672,921, with no remainder.
Since 672,921 cannot be divided by just 1 and 672,921, it is not a prime number.