23456789 is the largest prime number with consecutive increasing digits
Proof:
- There are only ten digits.
- In consecutive order, zero has to go first, so doesn't count.
- 123456789 is the first and longest candidate, but it isn't prime.
- 23456789 is the next longest candidate, and it's prime, so it wins!
(All other strings have fewer digits).
#primenumbers
Proof:
- In consecutive order, zero has to go first, so doesn't count.
- 123456789 is the first and longest candidate, but it isn't prime.
- 23456789 is the next longest candidate, and it's prime, so it wins!
(All other strings have fewer digits).
#primenumbers
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Forwarded from Mathematics Channel
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