anonymous
  • anonymous
does 2157 divide by 3?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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ivettef365
  • ivettef365
let see 21/3 = 7 and 57/3 = 19 so it definitely divides by 3
mathstudent55
  • mathstudent55
Add the digits of 2157 together. If the sum divides by 3, then 2157 divides by 3.
anonymous
  • anonymous
Any number is divisible by 3 iff the sum of all the numbers is divisible Here 2+1+5+7=15 As 15 is divisible by 3 So the given number is also divisible by 3

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