Is 20420989 a Prime Number

YES

20420989 is a prime number.

20420989 is not a composite number, it only has factor 1 and itself.

Prime Index of 20420989

Prime Numbe Index: 1295574 th
The 20420989 th prime number: 381885923
Hex format: 137997D
Binary format: 0b1001101111001100101111101

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