New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 6 Playing With Numbers Self Practice 3E Solution
(2) (a) 32 =25
(b) 48= 24 x3
(c) 66= 2x 3x 11
(d) 72= 23 x 32
(e) 84= 22 x 3x 7
(f) 100= 22 x52
(g) 840= 23x 2 x 5 x 7
(h) 504 = 23 x 32 x7
(i) 2904= 23 x 3 x 112
(j) 13845= 34 x 5x 72
(3) 343= 73
(4) (a) When all the factors are prime and their product is the original number.
(b) Prime factors of a number are all prime numbers where the factors of a number do not have to be prime.
Example No 2(g), Answer is wrong probably.