# MAths

Consider a digital clock. The first time after midnight when the three digits are all prime numbers is 2:22 am. What is the last time before 10:00 am, when the three digits on the clock are all prime numbers?

Details and assumptions
If you determine that the time is 4:23 am, type in 423 as your numerical answer.

1. 0
2. 0
3. 10
1. 757

1. 0
2. 0
posted by Prem Singh

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