Carcass wrote:
Which of the following will divide evenly into 347,456,500?
A. 3
B. 4
C. 6
D. 7
E. none of these
Divisibility Rules:Divisible by 2: Last digit is even
Divisible by 3: Sum of digits is divisible 3
Divisible by 4: Last 2 digits are divisible by 4
Divisible by 6: Last digit is even & Sum of digits is divisible 3
Divisible by 7: multiply the last digit by 2, and subtract it with the rest of the number to its left leaving the last digit. If the result is either 0 or a multiple of 7, then the number is divisible by 7
A. 3+4+7+4+5+6+5+0+0 = 34 which is not divisible by 3B. 347,456,500, Last 2 digits are 00 - 100 is divisible by 4We already have our answer!
Hence, option B