Aptitude by Rash: Find the last two digits of 15 x 37 x 63 x 51 x 97 x 17.

Saturday, 23 March 2019

Find the last two digits of 15 x 37 x 63 x 51 x 97 x 17.

$15 \times 37 \times 63 \times 51 \times 97 \times 17$

Find the last two digits of 15 x 37 x 63 x 51 x 97 x 17.

Solution:

15×37×63×51×97×17

= (10+5)*(40-3)*(60+3)*(50+1)*(100-3)*(10+7)

Multiply 5 x 3x 3 x 1 x 3 x 7

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