Question

Prime Numbers a. All prime numbers greater than 10 end in one of four digits. What are those digits? b. A number that ends in one of the digits in part (a) is not necessarily a prime number. For each digit in part (a), give an example of a number that ends in that digit but is not a prime number.

          Prime Numbers
a. All prime numbers greater than 10 end in one of four digits. What are those digits?
b. A number that ends in one of the digits in part (a) is not necessarily a prime number. For each digit in part (a), give an example of a number that ends in that digit but is not a prime number.

Added by Yolanda C.

Grade 6 Mathematics: Open Up Resources, Common Core State Standards Edition

N/A 6th Edition

Instant Answer

Solved by Expert Benjamin Densmore

02/22/2023

Step 1

All prime numbers greater than 10 can only end in one of four digits because prime numbers are only divisible by 1 and themselves. Since all even numbers are divisible by 2, prime numbers greater than 2 cannot end in an even digit (0, 2, 4, 6, or 8). Additionally, Show more…

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Prime Numbers a. All prime numbers greater than 10 end in one of four digits. What are those digits? b. A number that ends in one of the digits in part (a) is not necessarily a prime number. For each digit in part (a), give an example of a number that ends in that digit but is not a prime number.