Is 12261257 a Prime Number

YES

12261257 is a prime number.

12261257 is not a composite number, it only has factor 1 and itself.

Prime Index of 12261257

Prime Numbe Index: 804047 th
The 12261257 th prime number: 222663941
Hex format: BB1789
Binary format: 0b101110110001011110001001

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