If a = (2 2 3 3 5 4 ) and b = (2 3 3 2 5) then HCF (a, b) = ?

a = (22× 33× 54)b = (23× 32× 5)Here HCF (a, b) = product of common factors = 22 × 32 × 5 = 4 × 9 × 5 = 180.

Q2 of 114 Page 38

If a = (2²× 3³× 5⁴) and b = (2³× 3²× 5) then HCF (a, b) = ?

a = (2²× 3³× 5⁴)

b = (2³× 3²× 5)

Here HCF (a, b) = product of common factors = 2² × 3² × 5 = 4 × 9 × 5 = 180.

Explain why is a rational number.

Which of the following is a pair of co - primes?

HCF of (2³× 3²× 5), (2²× 3³× 5²) and (2⁴× 3 × 5³× 7) is

LCM of (2³× 3 × 5) and (2⁴× 5 × 7) is