Daily Archives: February 22, 2020

DAY/DYDD/GIORNO/NAP 53:

The Main Challenge From the numbers below, eliminate all: square numbers, triangular numbers, multiples of 4 and factors of 70. 1  2  3  4  5  6  7  8  9  10  12  14  15  16  18  20  21  24  25 Which … Continue reading

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