Question

2. Using divisibility tests, determine which of the following numbers are divisible by 4 by 8
(a) 726352
(b) 61233
(c) 21504
(d) 4335
(e) 6000
(f) 12583​

Answer 1

Answer:

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(a) 572 →→ Divisible by 4 as its last two digits are divisible by 4.

→→ Not divisible by 8 as its last three digits are not divisible by 8.

(b) 726352 →→ Divisible by 4 as its last two digits are divisible by 4.

→→ Divisible by 8 as its last three digits are divisible by 8.

(c) 5500 →→ Divisible by 4 as its last two digits are divisible by 4.

→→ Not divisible by 8 as its last three digits are not divisible by 8.

(d) 6000 →→ Divisible by 4 as its last two digits are 0.

→→ Divisible by 8 as its last three digits are 0.

(e) 12159 →→ Not divisible by 4 and 8 as it is an odd number.

(f) 14560 →→ Divisible by 4 as its last two digits are divisible by 4.

→→ Divisible by 8 as its last three digits are divisible by 8.

(g) 21084 →→ Divisible by 4 as its last two digits are divisible by 4.

→→ Not divisible by 8 as its last three digits are not divisible by 8.

(h) 31795072 →→ Divisible by 4 as its last two digits are divisible by 4.

→→ Divisible by 8 as its last three digits are divisible by 8.

(i) 1700 →→ Divisible by 4 as its last two digits are 0.

→→ Not divisible by 8 as its last three digits are not divisible by 8.

(j) 5500 →→ Not divisible by 4 as its last two digits are not divisible by 4.

→→ Not divisible by 8 as its last three digits are not divisible by 8.