. Check whether 6" can end with the digit 0 for any natural number n.
. Explain why 7x11x13+13 and 7 x6x5x4x3x2x1 +5 are composite numbers.
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composite no are those no which have factors in both the case we have are getting a multille by taking comman in first case we are getting 13 comman and in the second one we are getting 5 comman so the no is divisible by 13 and 5 respectively so yes it has a factor 13 and 5
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