# Using divisibility tests, determine which of the following numbers are divisible by 4 and by 8.**(a)** 572 **(b)** 726352

**Given :**

The given numbers are (a) 572 and (b) 726352.

**To do :**

We have to find which of the given numbers are divisible by 4 and by 8.

**Solution :**

(a) 572

**Divisibility by 4**

If the last two digits of a number are divisible by 4, then that number is a multiple of 4 and is divisible by 4 completely.

In 572, **72** is divisible by **4.**

Therefore, **572 is divisible by 4.**

572 is not divisible by 8.

(b) 726352

**Divisibility by 8**

If the last three digits of a number are divisible by 8, then the number is completely divisible by 8.

In 726352, **52** is divisible by **4**.

**Therefore, 726352 is divisible by 4.**

In 726352, **352** is divisible by **8**.

**Therefore, 726352 is divisible by 8.**

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