Question

what is the digital sum of 7487905666​

Answer 1

Step-by-step explanation:

Values Edit

The digit sum - add the digits of the representation of a number in a given base. For example, considering 84001 in base 10 the digit sum would be 8 + 4 + 0 + 0 + 1 = 13.

The digital root - repeatedly apply the digit sum operation to the representation of a number in a given base until the outcome is a single digit. For example, considering 84001 in base 10 the digital root would be 4 (8 + 4 + 0 + 0 + 1 = 13, 1 + 3 = 4).

Operations Edit

The mathematical operation digital sum in base b can also be called the digital sum. This is where each place is summed independently, ignoring digit carry. For example, 84001 + 56734 = (8 + 5 = 13)(4 + 6 = 10)(0 + 7 = 7)(0 + 3 = 3)(1 + 4 = 5) = 30735.

This disambiguation page lists articles associated with the title Digital sum.

If an internal link led you here, you may wish to change the link to point directly to the intended article.

Answer 2

Answer:

4

Step-by-step explanation:

digital sum = sum of all digits till the answer is in 1 digit.

digital sum of 7487905666 = 7+4+8+7+9+0+5+6+6+6

digital sum of 7487905666 = 58

digital sum of 58 = 5+8

digital sum of 58 = 13

digital sum of 13 = 1+3

digital sum of 13 = 4

digital sum of 7487905666 =4

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