Question

Q1. Write the factors of given numbers.
a. 14 :
b. 27:
C. 60:
d. 39:
Q2. Write first five prime numbers :
Q3. Encircle the composite numbers:
2 13 15 39 43 58
61
79
Q4. Fill in the blanks :
a.
is the smallest factor of every number.
b. Number which is not a factor of any number
c. Number itself is the
factor of every number.
d. is the smallest prime number.
e. is the smallest composite number.
Q5. Find the common factors of the given numbers:
a. 16, 40
b. 11,55
c. 28, 38
Q6. Find the factors of the given numbers using Prime
Factorization method:
b. 80
c. 125
d. 140
a. 64
Q7. The following numbers have already been factorized
for you. Find the HCF of the given pairs :
8:1,2,4,8
35: 1,5,7,35
20: 1, 2, 4, 5, 10, 20 40: 1, 2, 4,5, 8, 10, 20, 40
a. 8, 20:
b. 20, 35 :
C. 8, 40:
d. 35, 40: e. 8, 35:
f. 20,40 :​

Answer 1

Answer:

14 is a composite number. 14 = 1 x 14 or 2 x 7. Factors of 14: 1, 2, 7, 14. Prime factorization: 14 = 2 x 7.