Explanation Given: The number 2 , 772 . Definition: A prime number is a natural number that has exactly two distinct natural number divisors: 1 and itself. A composite number is a positive integer that can be formed by multiplying two smaller positive integers. A non-prime number is a composite number as it can be expressed in terms of two positive integers. Approach Used: To check if a number is divisible by 3 then test if the sum of the digits is divisible by 3 . To check if a number is divisible by 4 then test if the number formed by the last two digits is divisible by 4 . To check if a number is divisible by 8 then test if the number formed by the last three digits is divisible by 8 . To check if a number is divisible by 9 then test if the sum of the digits is divisible by 9 . Calculation: Since, the number formed by the last two digits of 2 , 772 is 72 which is divisible by 4 . Hence, 2 , 772 is divisible by 4

MYLAB MATH WITH PEARSON ETEXT FOR MATHEM

6th Edition

ISBN: 9780136470137

Author: Pirnot

Publisher: PEARSON

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Chapter 6.CR, Problem 7CR

To determine

To find:

The given number is divisible by 9, 4, 8.

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