find the number between 800 and 900 when which 46 and 69 and will leave the remainder 5 in each case.. solve it fast
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The divisibility test of 2^n is that you need to check the last ‘n’ digits of the number.
= To find out the remainder from 16, you need to check the last 4 digits
= Rem [12345….99100 / 16] = Rem [9100/16] = 12
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