Q: Is 972,621 a Prime Number?
A: No, 972,621 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 972621 can be evenly divided by 1 3 9 13 17 27 39 51 117 153 163 221 351 459 489 663 1,467 1,989 2,119 2,771 4,401 5,967 6,357 8,313 19,071 24,939 36,023 57,213 74,817 108,069 324,207 and 972,621, with no remainder.
Since 972,621 cannot be divided by just 1 and 972,621, it is not a prime number.