What goes into 756?

Answer 1

By inspection, the number 7762 is indivisible by 3 (the sum of the digits is indivisible by 3 --> 7+7+6+2 = 22), 4 (the sum of the last two digits is indivisible by 4), 5 (the unit digit is not a 5 or 0), 7, and 11 (the sum of the odd digits does not equal to the sum of the even digits; 7+6 <> 7+2).

So far, I have 7762 = 2*3881.

Now we have to deal with 3881. We know any integer below 13 is not a divisor. I have tried all prime numbers by simple division up to 67. The square root of 3881 is 62.3, so no solution for 3881.

The factors are 1, 2 and 3881.

Q.E.D.

Answer 2

The factors of 776 are 1, 2, 4, 8, 97, 194, 388, and 776

Answer 3

Factors of 756: 1,2,3,4,6,7,9,12,14,18,21,27,28,36,42,54,63,84,108,126,189,252,378,75

Answer 4

These numbers: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756.

Answer 5

You need at least two numbers to find a GCF.

Answer 6

The factors of 753 are 1, 3, 251, and 753.

Answer 7

1 x 776

2 x 388

3 x 258 and 2/3

4 x 194

5 x 155.2

6 x 129 and 1/3

7 x 110 and 6/7

8 x 97

9 x 86 and 2/9

10 x 77.6

Answer 8

2 x 2 x 3 x 3 x 3 x 7 = 756

Answer 9

1, 2, 3, 6, 131, 262, 393, 786