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What is the units digit for the number 123^(456) ?

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Expenses

What is the largest number which, when divided into 1905, 2587, 3951, 7020 and 8725 in turn, leaves the same remainder each time?

Galley Division

Stage: 4 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Step 1
$15$ goes into $47$ three times
step 2
$3 \times 1 = 3$
$4 - 3 = 1$

$3 \times 5 = 15$
$17 - 15 = 2$
step 3
Write $15$ again

$15$ goes into 23 once
step 4
$1 \times 1 = 1$
$2 - 1 =1$

$1 \times 5 = 5$
$13 - 5 =8$

... and so on until:
Step 8

$47324 \div 15 = 3154$ rem $14$