Balbharti Maharashtra State Board Class 7 Maths Solutions covers the 7th Std Maths Practice Set 11 Answers Solutions Chapter 3 HCF and LCM.
HCF and LCM Class 7 Practice Set 11 Answers Solutions Chapter 3
Question 1.
Factorize the following numbers into primes:
i. 32
ii. 57
iii. 23
iv. 150
v. 216
vi. 208
vii. 765
viii. 342
ix. 377
x. 559
Solution:
i. 32
∴ 32 = 2 × 2 × 2 × 2 × 2
ii. 57
∴ 57 = 3 × 19
iii. 23
∴ 23 = 23 × 1
iv. 150
∴ 150 = 2 × 3 × 5 × 5
v. 216
∴ 216 = 2 × 2 × 2 × 3 × 3 × 3
vi. 208
∴ 208 = 2 × 2 × 2 × 2 × 13
vii. 765
∴ 765 = 3 × 3 × 5 × 17
viii. 342
∴ 342 = 2 × 3 × 3 × 19
ix. 377
∴ 377 = 13 × 29
x. 559
∴ 559 = 13 × 43