Convert (20)10 to binary
20 / 2 = 10 , Remainder 0
10 / 2 = 5 , Remainder 0
5 / 2 = 2 , Remainder 1
2 / 2 = 1 , Remainder 0
1 / 2 = 0 , Remainder 1
Write the remainder from bottom to top ( in the reverse order )
20₁₀ = 10100₂
10 / 2 = 5 , Remainder 0
5 / 2 = 2 , Remainder 1
2 / 2 = 1 , Remainder 0
1 / 2 = 0 , Remainder 1
Write the remainder from bottom to top ( in the reverse order )
20₁₀ = 10100₂