What is the unit digit of N if N - 289 5- 587 7- 1156 9- 17 15

The correct option is D 6 ( 289 )^5× ( 587 )^7× ( 1156 )^9× ( 17 )^15 Multiply the units digit of each term,= 9 × 3 × 6 × 3 Now units digit after m ...

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Quantitative Aptitude

Unit Digit of a Number

What is the u...

Question

What is the unit digit of N if N = ${(289)}^{5} \times {(587)}^{7} \times {(1156)}^{9} \times {(17)}^{15}$

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Solution

The correct option is D 6
${(289)}^{5} \times {(587)}^{7} \times {(1156)}^{9} \times {(17)}^{15}$
Multiply the units digit of each term,
= $9 \times 3 \times 6 \times 3$
Now units digit after multiplying units digit of each term = $9 \times 3 \times 6 \times 3$ = $6$

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What is the unit digit of N if N = (289)5×(587)7×(1156)9×(17)15

The correct option is D 6(289)5×(587)7×(1156)9×(17)15Multiply the units digit of each term,= 9×3×6×3Now units digit after multiplying units digit of each term =9×3×6×3= 6

What is the unit digit of N if N = ${(289)}^{5} \times {(587)}^{7} \times {(1156)}^{9} \times {(17)}^{15}$

The correct option is D 6
${(289)}^{5} \times {(587)}^{7} \times {(1156)}^{9} \times {(17)}^{15}$
Multiply the units digit of each term,
= $9 \times 3 \times 6 \times 3$
Now units digit after multiplying units digit of each term = $9 \times 3 \times 6 \times 3$ = $6$