What is the remainder when 38^42 is divided by 10? And how

What is the remainder when 38^42 is divided by 10? And how I got two answers of this one is 24 by seperate then divide then fermat little therom and other is 4 by concept of cyclicity

• Abby
• 07 Jul
• 3 Answers

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• • Ashutosh
  • 07 Jul

  44

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• • Dharmavarapu
  • 06 Jul

  38^42=(38^21)^2=(.........88)^2
  ans= ..........44
  the last last two digits of the number is 44 and when it is divided by 10 the remainder is 4

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