Is 1489261 a Prime Number

YES
1489261 is a prime number.
1489261 is not a composite number, it only has factor 1 and itself.

Prime Index of 1489261

Prime Numbe Index: 113404 th
The 1489261 st prime number: 23695963
Hex format: 16B96D
Binary format: 0b101101011100101101101

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