14
LCD(7, 9, 2) = 126.
It is: 42
70
70
700
The LCD for 2 and 7 is 14
63
560
To find the least common denominator (LCD) of the numbers 98, 36, and 42, we first determine their prime factorizations: 98 = 2 × 7^2 36 = 2^2 × 3^2 42 = 2 × 3 × 7 The LCD is obtained by taking the highest power of each prime number present in the factorizations. This gives us: LCD = 2^2 × 3^2 × 7^2 = 4 × 9 × 49 = 1764. Thus, the LCD of 98, 36, and 42 is 1764.
1 All of these numbers are primes. * * * * * That is the HCF or GCF. The LCD is 42
405?
49 x 2 = 98 14 x 7 = 98 98 is the LCD