Question

Find the H.C.F. of the following numbers using prime factorisation method. (a)45 and 360. (b)52 and 78. (c) 540 and 840. (d)837and 1134.​

Answer 1

Answer:

a. 45

b. 13

c. 60

d. 27

Step-by-step explanation:

a. 45= 5x3x3

360= 5x3x3 x 2x2x2

b. 52= 13x 2x2

78= 13x 2x3

c. 540= 2x2x3x5 x 3x3

840= 2x2x3x5 x 2x7

d. 837= 3x3x3 x 31

1134= 3x3x3 x 2x3x7

Answer 2

Answer:

a=45

b= 13

c=60

d=27

Step-by-step explanation:

A) 45=5×3×3

360=5×3×3×2×2×2

=45

B) 52=13×2×2

78=13×3×3

=13

C) 504=5×3×3×3×2×2

840=7×5×3×2×2×2

=60

D) 837=31×3×3×3

1134=7×3×3×3×3×2

=27

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