Question

i. Find the factors of the following number:

40

ii. 77 is a __________ number.(prime/composite)

iii. 53 is a __________ number.(prime/composite)

iv. Find the HCF using the long division method.

20 and 50

v. Using prime factorization method , find the HCF.

15 and 45​

Answer 1

Answer:

1. 2,4,5,8,10,20

2. Composite

3. Prime

4.50/20=reminder 10

20/10=reminder 2

5. 15