Is 1998541 a Prime Number

YES

1998541 is a prime number.

1998541 is not a composite number, it only has factor 1 and itself.

Prime Index of 1998541

Prime Numbe Index: 148838 th
The 1998541 st prime number: 32427299
Hex format: 1E7ECD
Binary format: 0b111100111111011001101

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