Question

Find the number of divisors 1420.

• A. 14
• B. 15
• C. 13
• D. 12

Answer 1

The correct option is D 12

$1420=142\times 10=71\times 2\times 2\times 5$
$=2^2\times 5^1\times {71}^1$
No. of divisor $=(2+1)(1+1)(1+1)=12$