Bluff - Confusing prime numbers, Other prime numbers

Confusing prime numbers

The prime number 73,939,133 has a very strange property. If you keep removing a digit from the right hand end of the number, each of the remaining numbers is also prime. It's the largest number known with this property.

Take a look:
73,939,133 and 73,939,13 and 73,939,1 and 73,939 and 7,393 and 739 and 73 and 7 are all prime!

The topic on Bluff - Confusing prime numbers is posted by - Mallu

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