Logic || Divisibility Rule of 2,4,8,16,32 ...

Logic || Divisibility Rule of 2,4,8,16,32 ...

[matiaspereira]

Those are the hardest ways to explain the divisibility rules of the 1st 10 powers of 2:

2: The number ends in 0, 2, 4, 6 or 8

4: The 10s digit is even and the last digit is 0, 4 or 8/The 10s digit is odd and the last digit is 2 or 6

8: The 100s digit is even and the last 2 digits are a multiple of 8/The 100s digit is odd and the last 2 digits are a multiple of 4 and an odd number

16: The 1, 000s digit is even and the last 3 digits are a multiple of 16/The 1, 000s digit is odd and the last 3 digits are a multiple of 8 and an odd number

32: The 10, 000s digit is even and the last 4 digits are a multiple of 32/The 10, 000s digit is odd and the last 4 digits are a multiple of 16 and an odd number

64: The 100, 000s digit is even and the last 5 digits are a multiple of 64/The 100, 000s digit is odd and the last 5 digits are a multiple of 32 and an odd number

128: The 1, 000, 000s digit is even and the last 6 digits are a multiple of 128/The 1, 000, 000s digit is odd and the last 6 digits are a multiple of 64 and an odd number

256: The 10, 000, 000s digit is even and the last 7 digits are a multiple of 256/The 10, 000, 000s digit is odd and the last 7 digits are a multiple of 128 and an odd number

512: The 100, 000, 000s digit is even and the last 8 digits are a multiple of 512/The 100, 000, 000s digit is odd and the last 8 digits are a multiple of 256 and an odd number

1, 024: The 1, 000, 000, 000s digit is even and the last 9 digits are a multiple of 1, 024/The 1, 000, 000, 000s digit is odd and the last 9 digits are a multiple of 512 and an odd number