What is lcd of 98 36 42?

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.