You can put this solution on YOUR website! find the lowest natural number which when divided by 112, 140, and 168 leaves a remainder 8 in each case.
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Find factors of each number
112; 4*4*7
140: 4*5*7
178: 4*6*7
Find the least common multiple
4*4*5*6*7 = 3360
lowest natural number with remainder of 8: 3360 + 8 = 3368 is the number