Question

Find lcm and hcf of 120and 90in primfactarization

Answer 1

Step-by-step explanation:

120=2×2×2×3×5

90= 2×5×3×3

LCM=2×5×3×3×2×2=360

HCF=2×3×5=30

Answer 2

TO FIND:

LCM AND HCF OF 120 AND 90 BY PRIME FACTORISATION.

SOLUTION:

LET US FIRST FACTORIES THE NUMBERS.

120 = 2×2×2×3×5

90= 2×3×3×5

WE KNOW LCM IS

PRODUCT OF GREATEST POWER OF EACH PRIME FACTORS INVOLVED IN THE NUMBERS.

SO, THE LCM = 2^3 × 3^2 × 5. = 8×9×5 = 360

HCF :

THE PRODUCT OF THE SMALLEST POWER OF EACH PRIME FACTOR IN THE NUMBERS.

SO, THE HCF = 2×3×5 = 30.

HOPE THIS HÊLP ☺️☺️✌️