Greatest Common Divisor

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Find the *Greatest Common Divisor* (GCD) of the numbers 70 and 70.

**Answer**

$70=(2)(5)(7)$

$70=(2)(5)(7)$

The GCD of 70 and 70 is the product of the least powers of each prime factor in both.

Thus the GCD of 70 and 70

$=(2)(5)(7)$

$=70$