Question

The HCF and LCM of 15, 45 and 105 is

Answer 1

Answer:

the hcf-15

Step-by-step explanation:

Finding Factors of 15

1 x 15 = 15

3 x 5 = 15

Finding Factors of 45

1 x 45 = 45

3 x 15 = 45

5 x 9 = 45

Finding Factors of 105

1 x 105 = 105

3 x 35 = 105

5 x 21 = 105

7 x 15 = 105

Factors of 15 are [1, 3, 5, 15]

Factors of 45 are [1, 3, 5, 9, 15, 45]

Factors of 105 are [1, 3, 5, 7, 15, 21, 35, 105]

The common factors of 15, 45 and 105 are [1, 3, 5, 15]

The Largest Common Factor of 15, 45 and 105 is 15

HCF is 15

HOPE THIS HELPS YOU.

Answer 2

Answer:

LCM of 15,45 and 105 is 315

HCF of 15,45 and 105 is 15

Step-by-step explanation:

15 = 3×5

45 = 3×3×5

105=7× 3×3×5

LCM = 5×3×3×7 = 315 ( Here we take greatest exponents )

HCF = 5×3 = 15 ( Hear we take least exponents)