Question

guys u have any simple method to find all common multiple of 4 up to 100 .

Answer 1

4,8,3------------------100

a=4, d=a2-a1= 8-4=4, n=100


(an=2a×(n-d)×d)
an= 2(4)×(100-4)×4
an=8×(96)×4
an=8×(384)
an=3072 Ans